57880218 has 48 divisors (see below), whose sum is σ = 129353184. Its totient is φ = 17123040.

The previous prime is 57880183. The next prime is 57880231. The reversal of 57880218 is 81208875.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145596 + ... + 145992.

It is an arithmetic number, because the mean of its divisors is an integer number (2694858).

Almost surely, 2^57880218 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57880218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64676592).

57880218 is an abundant number, since it is smaller than the sum of its proper divisors (71472966).

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

57880218 is a wasteful number, since it uses less digits than its factorization.

57880218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 460 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 57880218 is about 7607.9049678607. The cubic root of 57880218 is about 386.8210083743.

The spelling of 57880218 in words is "fifty-seven million, eight hundred eighty thousand, two hundred eighteen".