260900640 has 576 divisors, whose sum is σ = 1202003712. Its totient is φ = 49766400.

The previous prime is 260900621. The next prime is 260900657. The reversal of 260900640 is 46009062.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1441350 + ... + 1441530.

It is an arithmetic number, because the mean of its divisors is an integer number (2086812).

Almost surely, 2^260900640 is an apocalyptic number.

260900640 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 260900640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601001856).

260900640 is an abundant number, since it is smaller than the sum of its proper divisors (941103072).

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

260900640 is a wasteful number, since it uses less digits than its factorization.

260900640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 222 counting only the distinct ones).

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

The square root of 260900640 is about 16152.4190138815. The cubic root of 260900640 is about 638.9865470656.

The spelling of 260900640 in words is "two hundred sixty million, nine hundred thousand, six hundred forty".