57813480 has 128 divisors (see below), whose sum is σ = 194400000. Its totient is φ = 15282432.

The previous prime is 57813479. The next prime is 57813487. The reversal of 57813480 is 8431875.

57813480 is a `hidden beast` number, since 578 + 1 + 3 + 4 + 80 = 666.

57813480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57813487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214786 + ... + 215054.

It is an arithmetic number, because the mean of its divisors is an integer number (1518750).

Almost surely, 2^57813480 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 57813480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97200000).

57813480 is an abundant number, since it is smaller than the sum of its proper divisors (136586520).

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

57813480 is a wasteful number, since it uses less digits than its factorization.

57813480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 478 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 57813480 is about 7603.5176070027. The cubic root of 57813480 is about 386.6722782909.

It can be divided in two parts, 5781 and 3480, that added together give a cube (9261 = 21³).

The spelling of 57813480 in words is "fifty-seven million, eight hundred thirteen thousand, four hundred eighty".