57451040 has 24 divisors (see below), whose sum is σ = 135728460. Its totient is φ = 22980352.

The previous prime is 57451039. The next prime is 57451049. The reversal of 57451040 is 4015475.

It can be written as a sum of positive squares in 2 ways, for example, as 47389456 + 10061584 = 6884^2 + 3172^2 .

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (57451049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179375 + ... + 179694.

Almost surely, 2^57451040 is an apocalyptic number.

It is an amenable number.

57451040 is an abundant number, since it is smaller than the sum of its proper divisors (78277420).

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

57451040 is a wasteful number, since it uses less digits than its factorization.

57451040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359084 (or 359076 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 57451040 is about 7579.6464297486. The cubic root of 57451040 is about 385.8625514008.

Adding to 57451040 its product of nonzero digits (2800), we get a triangular number (57453840 = T₁₀₇₁₉).

The spelling of 57451040 in words is "fifty-seven million, four hundred fifty-one thousand, forty".