57673640 has 32 divisors (see below), whose sum is σ = 133954560. Its totient is φ = 22324800.

The previous prime is 57673631. The next prime is 57673643. The reversal of 57673640 is 4637675.

It is a junction number, because it is equal to n+sod(n) for n = 57673594 and 57673603.

It is not an unprimeable number, because it can be changed into a prime (57673643) 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 7 ways as a sum of consecutive naturals, for example, 22016 + ... + 24495.

It is an arithmetic number, because the mean of its divisors is an integer number (4186080).

Almost surely, 2^57673640 is an apocalyptic number.

It is an amenable number.

57673640 is an abundant number, since it is smaller than the sum of its proper divisors (76280920).

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

57673640 is a wasteful number, since it uses less digits than its factorization.

57673640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46553 (or 46549 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 57673640 is about 7594.3162957570. The cubic root of 57673640 is about 386.3602639362.

The spelling of 57673640 in words is "fifty-seven million, six hundred seventy-three thousand, six hundred forty".