57239484 has 12 divisors (see below), whose sum is σ = 133558824. Its totient is φ = 19079824.

The previous prime is 57239477. The next prime is 57239489. The reversal of 57239484 is 48493275.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57239489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384967 + ... + 2384990.

It is an arithmetic number, because the mean of its divisors is an integer number (11129902).

Almost surely, 2^57239484 is an apocalyptic number.

It is an amenable number.

57239484 is an abundant number, since it is smaller than the sum of its proper divisors (76319340).

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

57239484 is a wasteful number, since it uses less digits than its factorization.

57239484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769964 (or 4769962 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 57239484 is about 7565.6780264561. The cubic root of 57239484 is about 385.3883392566.

The spelling of 57239484 in words is "fifty-seven million, two hundred thirty-nine thousand, four hundred eighty-four".