57198398 has 16 divisors (see below), whose sum is σ = 90625920. Its totient is φ = 27000216.

The previous prime is 57198391. The next prime is 57198433. The reversal of 57198398 is 89389175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57198391) 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, 9215 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (5664120).

Almost surely, 2^57198398 is an apocalyptic number.

57198398 is a deficient number, since it is larger than the sum of its proper divisors (33427522).

57198398 is a wasteful number, since it uses less digits than its factorization.

57198398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5231.

The product of its digits is 544320, while the sum is 50.

The square root of 57198398 is about 7562.9622503355. The cubic root of 57198398 is about 385.2961077279.

The spelling of 57198398 in words is "fifty-seven million, one hundred ninety-eight thousand, three hundred ninety-eight".