1255704728 has 16 divisors (see below), whose sum is σ = 2492943480. Its totient is φ = 590919808.

The previous prime is 1255704719. The next prime is 1255704731. The reversal of 1255704728 is 8274075521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616426 + ... + 4616697.

Almost surely, 2^1255704728 is an apocalyptic number.

It is an amenable number.

1255704728 is a deficient number, since it is larger than the sum of its proper divisors (1237238752).

1255704728 is a wasteful number, since it uses less digits than its factorization.

1255704728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233146 (or 9233142 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 41.

The square root of 1255704728 is about 35435.9242577360. The cubic root of 1255704728 is about 1078.8535869040.

The spelling of 1255704728 in words is "one billion, two hundred fifty-five million, seven hundred four thousand, seven hundred twenty-eight".