57471330 has 64 divisors (see below), whose sum is σ = 163088640. Its totient is φ = 12681984.

The previous prime is 57471329. The next prime is 57471331. The reversal of 57471330 is 3317475.

It is an interprime number because it is at equal distance from previous prime (57471329) and next prime (57471331).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (57471331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1372 + ... + 10808.

It is an arithmetic number, because the mean of its divisors is an integer number (2548260).

Almost surely, 2^57471330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57471330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81544320).

57471330 is an abundant number, since it is smaller than the sum of its proper divisors (105617310).

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

57471330 is a wasteful number, since it uses less digits than its factorization.

57471330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 57471330 is about 7580.9847645276. The cubic root of 57471330 is about 385.9079711163.

The spelling of 57471330 in words is "fifty-seven million, four hundred seventy-one thousand, three hundred thirty".