57040452 has 72 divisors (see below), whose sum is σ = 165477312. Its totient is φ = 16228800.

The previous prime is 57040447. The next prime is 57040453. The reversal of 57040452 is 25404075.

57040452 is a `hidden beast` number, since 570 + 40 + 4 + 52 = 666.

57040452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57040452² = 6507226328728608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57040453) 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 23 ways as a sum of consecutive naturals, for example, 115927 + ... + 116417.

It is an arithmetic number, because the mean of its divisors is an integer number (2298296).

Almost surely, 2^57040452 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 57040452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82738656).

57040452 is an abundant number, since it is smaller than the sum of its proper divisors (108436860).

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

57040452 is a wasteful number, since it uses less digits than its factorization.

57040452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 57040452 is about 7552.5129592739. The cubic root of 57040452 is about 384.9411322824.

The spelling of 57040452 in words is "fifty-seven million, forty thousand, four hundred fifty-two".