57236442 has 8 divisors (see below), whose sum is σ = 114472896. Its totient is φ = 19078812.

The previous prime is 57236429. The next prime is 57236471. The reversal of 57236442 is 24463275.

It is a sphenic number, since it is the product of 3 distinct primes.

57236442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4769698 + ... + 4769709.

It is an arithmetic number, because the mean of its divisors is an integer number (14309112).

Almost surely, 2^57236442 is an apocalyptic number.

57236442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57236442 is a wasteful number, since it uses less digits than its factorization.

57236442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9539412.

The product of its digits is 40320, while the sum is 33.

The square root of 57236442 is about 7565.4769843018. The cubic root of 57236442 is about 385.3815119641.

The spelling of 57236442 in words is "fifty-seven million, two hundred thirty-six thousand, four hundred forty-two".