260469440 has 252 divisors, whose sum is σ = 805092624. Its totient is φ = 78566400.

The previous prime is 260469431. The next prime is 260469449. The reversal of 260469440 is 44964062.

It is an interprime number because it is at equal distance from previous prime (260469431) and next prime (260469449).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 260469440.

It is not an unprimeable number, because it can be changed into a prime (260469449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8402225 + ... + 8402255.

It is an arithmetic number, because the mean of its divisors is an integer number (3194812).

Almost surely, 2^260469440 is an apocalyptic number.

260469440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260469440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402546312).

260469440 is an abundant number, since it is smaller than the sum of its proper divisors (544623184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260469440 is a wasteful number, since it uses less digits than its factorization.

260469440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 260469440 is about 16139.0656482958. The cubic root of 260469440 is about 638.6343274977.

Multiplying 260469440 by its sum of digits (35), we get a square (9116430400 = 95480²).

260469440 divided by its sum of digits (35) gives a square (7441984 = 2728²).

The spelling of 260469440 in words is "two hundred sixty million, four hundred sixty-nine thousand, four hundred forty".