57146472 has 80 divisors (see below), whose sum is σ = 165636900. Its totient is φ = 18385920.

The previous prime is 57146461. The next prime is 57146489. The reversal of 57146472 is 27464175.

57146472 is a `hidden beast` number, since 5 + 7 + 1 + 4 + 647 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 51065316 + 6081156 = 7146^2 + 2466^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17272 + ... + 20312.

Almost surely, 2^57146472 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 57146472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82818450).

57146472 is an abundant number, since it is smaller than the sum of its proper divisors (108490428).

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

57146472 is a wasteful number, since it uses less digits than its factorization.

57146472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088 (or 3075 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 57146472 is about 7559.5285567289. The cubic root of 57146472 is about 385.1794789196.

It can be divided in two parts, 571464 and 72, that added together give a square (571536 = 756²).

The spelling of 57146472 in words is "fifty-seven million, one hundred forty-six thousand, four hundred seventy-two".