57040770 has 16 divisors (see below), whose sum is σ = 136897920. Its totient is φ = 15210864.

The previous prime is 57040733. The next prime is 57040777. The reversal of 57040770 is 7704075.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 1901359 = 57040770 / (5 + 7 + 0 + 4 + 0 + 7 + 7 + 0).

It is not an unprimeable number, because it can be changed into a prime (57040777) 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, 950650 + ... + 950709.

It is an arithmetic number, because the mean of its divisors is an integer number (8556120).

Almost surely, 2^57040770 is an apocalyptic number.

57040770 is an abundant number, since it is smaller than the sum of its proper divisors (79857150).

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

57040770 is a wasteful number, since it uses less digits than its factorization.

57040770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901369.

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

The square root of 57040770 is about 7552.5340118400. The cubic root of 57040770 is about 384.9418476288.

The spelling of 57040770 in words is "fifty-seven million, forty thousand, seven hundred seventy".