57018480 has 80 divisors (see below), whose sum is σ = 181562784. Its totient is φ = 14791680.

The previous prime is 57018463. The next prime is 57018491. The reversal of 57018480 is 8481075.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×57018480² = 6502214123020800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5670 + ... + 12090.

Almost surely, 2^57018480 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 57018480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90781392).

57018480 is an abundant number, since it is smaller than the sum of its proper divisors (124544304).

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

57018480 is a wasteful number, since it uses less digits than its factorization.

57018480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6474 (or 6468 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 57018480 is about 7551.0582039870. The cubic root of 57018480 is about 384.8916994530.

The spelling of 57018480 in words is "fifty-seven million, eighteen thousand, four hundred eighty".