57019424 has 96 divisors (see below), whose sum is σ = 142321536. Its totient is φ = 21841920.

The previous prime is 57019381. The next prime is 57019439. The reversal of 57019424 is 42491075.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179714 + ... + 180030.

It is an arithmetic number, because the mean of its divisors is an integer number (1482516).

Almost surely, 2^57019424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57019424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71160768).

57019424 is an abundant number, since it is smaller than the sum of its proper divisors (85302112).

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

57019424 is a wasteful number, since it uses less digits than its factorization.

57019424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 57019424 is about 7551.1207115236. The cubic root of 57019424 is about 384.8938235349.

The spelling of 57019424 in words is "fifty-seven million, nineteen thousand, four hundred twenty-four".