57242022 has 32 divisors (see below), whose sum is σ = 121461120. Its totient is φ = 17933760.

The previous prime is 57242021. The next prime is 57242033. The reversal of 57242022 is 22024275.

It is a junction number, because it is equal to n+sod(n) for n = 57241983 and 57242001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57242021) 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, 13018 + ... + 16850.

It is an arithmetic number, because the mean of its divisors is an integer number (3795660).

Almost surely, 2^57242022 is an apocalyptic number.

57242022 is an abundant number, since it is smaller than the sum of its proper divisors (64219098).

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

57242022 is a wasteful number, since it uses less digits than its factorization.

57242022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 57242022 is about 7565.8457557632. The cubic root of 57242022 is about 385.3940352149.

Adding to 57242022 its reverse (22024275), we get a palindrome (79266297).

The spelling of 57242022 in words is "fifty-seven million, two hundred forty-two thousand, twenty-two".