260828736 has 56 divisors (see below), whose sum is σ = 788700480. Its totient is φ = 74522112.

The previous prime is 260828731. The next prime is 260828749. The reversal of 260828736 is 637828062.

260828736 = 26² + 27² + ... + 921².

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (260828731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95691 + ... + 98378.

Almost surely, 2^260828736 is an apocalyptic number.

It is an amenable number.

260828736 is an abundant number, since it is smaller than the sum of its proper divisors (527871744).

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

260828736 is a wasteful number, since it uses less digits than its factorization.

260828736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194091 (or 194081 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 260828736 is about 16150.1930638615. The cubic root of 260828736 is about 638.9278402846.

The spelling of 260828736 in words is "two hundred sixty million, eight hundred twenty-eight thousand, seven hundred thirty-six".