57309498 has 16 divisors (see below), whose sum is σ = 127354560. Its totient is φ = 19103148.

The previous prime is 57309493. The next prime is 57309569. The reversal of 57309498 is 89490375.

It is a super-2 number, since 2×57309498² = 6568757122024008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57309493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530590 + ... + 530697.

It is an arithmetic number, because the mean of its divisors is an integer number (7959660).

Almost surely, 2^57309498 is an apocalyptic number.

57309498 is an abundant number, since it is smaller than the sum of its proper divisors (70045062).

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

57309498 is a wasteful number, since it uses less digits than its factorization.

57309498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061298 (or 1061292 counting only the distinct ones).

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

The square root of 57309498 is about 7570.3036927193. The cubic root of 57309498 is about 385.5454079050.

The spelling of 57309498 in words is "fifty-seven million, three hundred nine thousand, four hundred ninety-eight".