57398814 has 64 divisors (see below), whose sum is σ = 141212160. Its totient is φ = 17136000.

The previous prime is 57398807. The next prime is 57398821. The reversal of 57398814 is 41889375.

It is an interprime number because it is at equal distance from previous prime (57398807) and next prime (57398821).

It is a self number, because there is not a number n which added to its sum of digits gives 57398814.

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, 41494 + ... + 42854.

It is an arithmetic number, because the mean of its divisors is an integer number (2206440).

Almost surely, 2^57398814 is an apocalyptic number.

57398814 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 57398814, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70606080).

57398814 is an abundant number, since it is smaller than the sum of its proper divisors (83813346).

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

57398814 is a wasteful number, since it uses less digits than its factorization.

57398814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454 (or 1448 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 57398814 is about 7576.2004989308. The cubic root of 57398814 is about 385.7455928733.

The spelling of 57398814 in words is "fifty-seven million, three hundred ninety-eight thousand, eight hundred fourteen".