57357244 has 36 divisors (see below), whose sum is σ = 120801240. Its totient is φ = 23731680.

The previous prime is 57357229. The next prime is 57357247. The reversal of 57357244 is 44275375.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57357247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 639 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (3355590).

Almost surely, 2^57357244 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 57357244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60400620).

57357244 is an abundant number, since it is smaller than the sum of its proper divisors (63443996).

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

57357244 is a wasteful number, since it uses less digits than its factorization.

57357244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10138 (or 10129 counting only the distinct ones).

The product of its digits is 117600, while the sum is 37.

The square root of 57357244 is about 7573.4565424250. The cubic root of 57357244 is about 385.6524474123.

The spelling of 57357244 in words is "fifty-seven million, three hundred fifty-seven thousand, two hundred forty-four".