57333240 has 96 divisors (see below), whose sum is σ = 189193680. Its totient is φ = 15054336.

The previous prime is 57333217. The next prime is 57333247. The reversal of 57333240 is 4233375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57333247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22932 + ... + 25308.

Almost surely, 2^57333240 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 57333240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94596840).

57333240 is an abundant number, since it is smaller than the sum of its proper divisors (131860440).

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

57333240 is a wasteful number, since it uses less digits than its factorization.

57333240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461 (or 2454 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 27.

The square root of 57333240 is about 7571.8716312415. The cubic root of 57333240 is about 385.5986414041.

The spelling of 57333240 in words is "fifty-seven million, three hundred thirty-three thousand, two hundred forty".