57040445 has 16 divisors (see below), whose sum is σ = 85339008. Its totient is φ = 35557440.

The previous prime is 57040441. The next prime is 57040447. The reversal of 57040445 is 54404075.

It is not a de Polignac number, because 57040445 - 2² = 57040441 is a prime.

It is a super-2 number, since 2×57040445² = 6507224731596050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57040441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73694 + ... + 74463.

It is an arithmetic number, because the mean of its divisors is an integer number (5333688).

Almost surely, 2^57040445 is an apocalyptic number.

57040445 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57040445 is a deficient number, since it is larger than the sum of its proper divisors (28298563).

57040445 is a wasteful number, since it uses less digits than its factorization.

57040445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148180.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 57040445 is about 7552.5124958520. The cubic root of 57040445 is about 384.9411165357.

The spelling of 57040445 in words is "fifty-seven million, forty thousand, four hundred forty-five".