57001944 has 32 divisors (see below), whose sum is σ = 142737840. Its totient is φ = 18969600.

The previous prime is 57001939. The next prime is 57001949. The reversal of 57001944 is 44910075.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57001939) and next prime (57001949).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57001949) 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, 16704 + ... + 19824.

Almost surely, 2^57001944 is an apocalyptic number.

It is an amenable number.

57001944 is an abundant number, since it is smaller than the sum of its proper divisors (85735896).

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

57001944 is a wasteful number, since it uses less digits than its factorization.

57001944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3891 (or 3887 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 57001944 is about 7549.9631787182. The cubic root of 57001944 is about 384.8544882161.

The spelling of 57001944 in words is "fifty-seven million, one thousand, nine hundred forty-four".