57430998 has 64 divisors (see below), whose sum is σ = 137142720. Its totient is φ = 17750016.

The previous prime is 57430987. The next prime is 57431009. The reversal of 57430998 is 89903475.

It is an interprime number because it is at equal distance from previous prime (57430987) and next prime (57431009).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66586 + ... + 67442.

It is an arithmetic number, because the mean of its divisors is an integer number (2142855).

Almost surely, 2^57430998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57430998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68571360).

57430998 is an abundant number, since it is smaller than the sum of its proper divisors (79711722).

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

57430998 is a wasteful number, since it uses less digits than its factorization.

57430998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 57430998 is about 7578.3242210927. The cubic root of 57430998 is about 385.8176763401.

The spelling of 57430998 in words is "fifty-seven million, four hundred thirty thousand, nine hundred ninety-eight".