57046140 has 96 divisors (see below), whose sum is σ = 178920000. Its totient is φ = 15088896.

The previous prime is 57046123. The next prime is 57046147. The reversal of 57046140 is 4164075.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57046147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80106 + ... + 80814.

It is an arithmetic number, because the mean of its divisors is an integer number (1863750).

Almost surely, 2^57046140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57046140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89460000).

57046140 is an abundant number, since it is smaller than the sum of its proper divisors (121873860).

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

57046140 is a wasteful number, since it uses less digits than its factorization.

57046140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 57046140 is about 7552.8895132922. The cubic root of 57046140 is about 384.9539271341.

The spelling of 57046140 in words is "fifty-seven million, forty-six thousand, one hundred forty".