57878472 has 64 divisors (see below), whose sum is σ = 154552320. Its totient is φ = 17998848.

The previous prime is 57878467. The next prime is 57878477. The reversal of 57878472 is 27487875.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57878467) and next prime (57878477).

It is not an unprimeable number, because it can be changed into a prime (57878477) 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, 51258 + ... + 52374.

It is an arithmetic number, because the mean of its divisors is an integer number (2414880).

Almost surely, 2^57878472 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 57878472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77276160).

57878472 is an abundant number, since it is smaller than the sum of its proper divisors (96673848).

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

57878472 is a wasteful number, since it uses less digits than its factorization.

57878472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270 (or 1266 counting only the distinct ones).

The product of its digits is 878080, while the sum is 48.

The square root of 57878472 is about 7607.7902179279. The cubic root of 57878472 is about 386.8171187536.

The spelling of 57878472 in words is "fifty-seven million, eight hundred seventy-eight thousand, four hundred seventy-two".