57280678 has 32 divisors (see below), whose sum is σ = 106170624. Its totient is φ = 22570272.

The previous prime is 57280673. The next prime is 57280693. The reversal of 57280678 is 87608275.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57280673) by changing a digit.

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, 62701 + ... + 63607.

It is an arithmetic number, because the mean of its divisors is an integer number (3317832).

Almost surely, 2^57280678 is an apocalyptic number.

57280678 is a deficient number, since it is larger than the sum of its proper divisors (48889946).

57280678 is a wasteful number, since it uses less digits than its factorization.

57280678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 57280678 is about 7568.3999630041. The cubic root of 57280678 is about 385.4807689292.

The spelling of 57280678 in words is "fifty-seven million, two hundred eighty thousand, six hundred seventy-eight".