260213904 has 80 divisors (see below), whose sum is σ = 779414400. Its totient is φ = 82963584.

The previous prime is 260213893. The next prime is 260213923. The reversal of 260213904 is 409312062.

It is a super-2 number, since 2×260213904² = 135422551669842432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3159 + ... + 23030.

It is an arithmetic number, because the mean of its divisors is an integer number (9742680).

Almost surely, 2^260213904 is an apocalyptic number.

260213904 is a gapful number since it is divisible by the number (24) 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 260213904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389707200).

260213904 is an abundant number, since it is smaller than the sum of its proper divisors (519200496).

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

260213904 is a wasteful number, since it uses less digits than its factorization.

260213904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26229 (or 26217 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 260213904 is about 16131.1470143942. The cubic root of 260213904 is about 638.4254130875.

Adding to 260213904 its reverse (409312062), we get a palindrome (669525966).

The spelling of 260213904 in words is "two hundred sixty million, two hundred thirteen thousand, nine hundred four".