1255380928 has 14 divisors (see below), whose sum is σ = 2491146656. Its totient is φ = 627690432.

The previous prime is 1255380899. The next prime is 1255380941. The reversal of 1255380928 is 8290835521.

It is a super-2 number, since 2×1255380928² = 3151962548772282368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9807600 + ... + 9807727.

Almost surely, 2^1255380928 is an apocalyptic number.

It is an amenable number.

1255380928 is a deficient number, since it is larger than the sum of its proper divisors (1235765728).

1255380928 is an equidigital number, since it uses as much as digits as its factorization.

1255380928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19615339 (or 19615329 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 1255380928 is about 35431.3551533102. The cubic root of 1255380928 is about 1078.7608467307.

The spelling of 1255380928 in words is "one billion, two hundred fifty-five million, three hundred eighty thousand, nine hundred twenty-eight".