57423222 has 32 divisors (see below), whose sum is σ = 131727360. Its totient is φ = 18523080.

The previous prime is 57423211. The next prime is 57423227. The reversal of 57423222 is 22232475.

It is a super-2 number, since 2×57423222² = 6594852849722568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57423227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15478 + ... + 18825.

It is an arithmetic number, because the mean of its divisors is an integer number (4116480).

Almost surely, 2^57423222 is an apocalyptic number.

57423222 is an abundant number, since it is smaller than the sum of its proper divisors (74304138).

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

57423222 is a wasteful number, since it uses less digits than its factorization.

57423222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34345 (or 34339 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 57423222 is about 7577.8111615426. The cubic root of 57423222 is about 385.8002626683.

Adding to 57423222 its reverse (22232475), we get a palindrome (79655697).

The spelling of 57423222 in words is "fifty-seven million, four hundred twenty-three thousand, two hundred twenty-two".