57422420 has 24 divisors (see below), whose sum is σ = 131550048. Its totient is φ = 20880800.

The previous prime is 57422371. The next prime is 57422423. The reversal of 57422420 is 2422475.

It is a self number, because there is not a number n which added to its sum of digits gives 57422420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57422423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130286 + ... + 130725.

It is an arithmetic number, because the mean of its divisors is an integer number (5481252).

Almost surely, 2^57422420 is an apocalyptic number.

It is an amenable number.

57422420 is an abundant number, since it is smaller than the sum of its proper divisors (74127628).

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

57422420 is a wasteful number, since it uses less digits than its factorization.

57422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261031 (or 261029 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 57422420 is about 7577.7582437024. The cubic root of 57422420 is about 385.7984665700.

Adding to 57422420 its reverse (2422475), we get a palindrome (59844895).

Subtracting from 57422420 its reverse (2422475), we obtain a palindrome (54999945).

The spelling of 57422420 in words is "fifty-seven million, four hundred twenty-two thousand, four hundred twenty".