57984642 has 24 divisors (see below), whose sum is σ = 126410544. Its totient is φ = 19208664.

The previous prime is 57984623. The next prime is 57984643. The reversal of 57984642 is 24648975.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57984643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6948 + ... + 12815.

It is an arithmetic number, because the mean of its divisors is an integer number (5267106).

Almost surely, 2^57984642 is an apocalyptic number.

57984642 is an abundant number, since it is smaller than the sum of its proper divisors (68425902).

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

57984642 is a wasteful number, since it uses less digits than its factorization.

57984642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19934 (or 19931 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 57984642 is about 7614.7647370093. The cubic root of 57984642 is about 387.0534949987.

It can be divided in two parts, 5798 and 4642, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 57984642 in words is "fifty-seven million, nine hundred eighty-four thousand, six hundred forty-two".