57142480 has 40 divisors (see below), whose sum is σ = 135373032. Its totient is φ = 22424064.

The previous prime is 57142471. The next prime is 57142489. The reversal of 57142480 is 8424175.

It is an interprime number because it is at equal distance from previous prime (57142471) and next prime (57142489).

It can be written as a sum of positive squares in 4 ways, for example, as 14684224 + 42458256 = 3832^2 + 6516^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57142489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2499 + ... + 10978.

Almost surely, 2^57142480 is an apocalyptic number.

It is an amenable number.

57142480 is an abundant number, since it is smaller than the sum of its proper divisors (78230552).

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

57142480 is a wasteful number, since it uses less digits than its factorization.

57142480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13543 (or 13537 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 57142480 is about 7559.2645144882. The cubic root of 57142480 is about 385.1705097320.

The spelling of 57142480 in words is "fifty-seven million, one hundred forty-two thousand, four hundred eighty".