57454644 has 96 divisors (see below), whose sum is σ = 153538560. Its totient is φ = 16587648.

The previous prime is 57454627. The next prime is 57454669. The reversal of 57454644 is 44645475.

It is a super-2 number, since 2×57454644² = 6602072234333472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240277 + ... + 240515.

It is an arithmetic number, because the mean of its divisors is an integer number (1599360).

Almost surely, 2^57454644 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 57454644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76769280).

57454644 is an abundant number, since it is smaller than the sum of its proper divisors (96083916).

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

57454644 is a wasteful number, since it uses less digits than its factorization.

57454644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its digits is 268800, while the sum is 39.

The square root of 57454644 is about 7579.8841679804. The cubic root of 57454644 is about 385.8706198335.

The spelling of 57454644 in words is "fifty-seven million, four hundred fifty-four thousand, six hundred forty-four".