57998280 has 64 divisors (see below), whose sum is σ = 175659840. Its totient is φ = 15318272.

The previous prime is 57998263. The next prime is 57998287. The reversal of 57998280 is 8289975.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (57998287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10582 + ... + 15098.

It is an arithmetic number, because the mean of its divisors is an integer number (2744685).

Almost surely, 2^57998280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57998280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87829920).

57998280 is an abundant number, since it is smaller than the sum of its proper divisors (117661560).

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

57998280 is a wasteful number, since it uses less digits than its factorization.

57998280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638 (or 4634 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 57998280 is about 7615.6601814944. The cubic root of 57998280 is about 387.0838376411.

The spelling of 57998280 in words is "fifty-seven million, nine hundred ninety-eight thousand, two hundred eighty".