57009140 has 24 divisors (see below), whose sum is σ = 120022560. Its totient is φ = 22745888.

The previous prime is 57009133. The next prime is 57009149. The reversal of 57009140 is 4190075.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57009149) 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, 4979 + ... + 11781.

It is an arithmetic number, because the mean of its divisors is an integer number (5000940).

Almost surely, 2^57009140 is an apocalyptic number.

It is an amenable number.

57009140 is an abundant number, since it is smaller than the sum of its proper divisors (63013420).

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

57009140 is a wasteful number, since it uses less digits than its factorization.

57009140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231 (or 7229 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 57009140 is about 7550.4397222943. The cubic root of 57009140 is about 384.8706823794.

The spelling of 57009140 in words is "fifty-seven million, nine thousand, one hundred forty".