57077040 has 40 divisors (see below), whose sum is σ = 176939568. Its totient is φ = 15220480.

The previous prime is 57077023. The next prime is 57077047. The reversal of 57077040 is 4077075.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 57076989 and 57077007.

It is not an unprimeable number, because it can be changed into a prime (57077047) 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, 118671 + ... + 119150.

Almost surely, 2^57077040 is an apocalyptic number.

It is an amenable number.

57077040 is an abundant number, since it is smaller than the sum of its proper divisors (119862528).

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

57077040 is a wasteful number, since it uses less digits than its factorization.

57077040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237837 (or 237831 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 30.

The square root of 57077040 is about 7554.9348111019. The cubic root of 57077040 is about 385.0234201753.

The spelling of 57077040 in words is "fifty-seven million, seventy-seven thousand, forty".