57197244 has 48 divisors (see below), whose sum is σ = 144908288. Its totient is φ = 17454528.

The previous prime is 57197243. The next prime is 57197279. The reversal of 57197244 is 44279175.

57197244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57197243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18369 + ... + 21255.

Almost surely, 2^57197244 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 57197244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72454144).

57197244 is an abundant number, since it is smaller than the sum of its proper divisors (87711044).

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

57197244 is a wasteful number, since it uses less digits than its factorization.

57197244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3034 (or 3032 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 57197244 is about 7562.8859570934. The cubic root of 57197244 is about 385.2935165440.

The spelling of 57197244 in words is "fifty-seven million, one hundred ninety-seven thousand, two hundred forty-four".