57847440 has 120 divisors (see below), whose sum is σ = 208647360. Its totient is φ = 13219584.

The previous prime is 57847429. The next prime is 57847441. The reversal of 57847440 is 4474875.

57847440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is not an unprimeable number, because it can be changed into a prime (57847441) 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 23 ways as a sum of consecutive naturals, for example, 9301 + ... + 14219.

It is an arithmetic number, because the mean of its divisors is an integer number (1738728).

Almost surely, 2^57847440 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 57847440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104323680).

57847440 is an abundant number, since it is smaller than the sum of its proper divisors (150799920).

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

57847440 is a wasteful number, since it uses less digits than its factorization.

57847440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949 (or 4936 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 57847440 is about 7605.7504560694. The cubic root of 57847440 is about 386.7479747101.

The spelling of 57847440 in words is "fifty-seven million, eight hundred forty-seven thousand, four hundred forty".