57411840 has 72 divisors (see below), whose sum is σ = 183371328. Its totient is φ = 15308800.

The previous prime is 57411817. The next prime is 57411857. The reversal of 57411840 is 4811475.

It is a super-2 number, since 2×57411840² = 6592238744371200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 57411798 and 57411807.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3636 + ... + 11315.

It is an arithmetic number, because the mean of its divisors is an integer number (2546824).

Almost surely, 2^57411840 is an apocalyptic number.

It is an amenable number.

57411840 is an abundant number, since it is smaller than the sum of its proper divisors (125959488).

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

57411840 is a wasteful number, since it uses less digits than its factorization.

57411840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14975 (or 14961 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 57411840 is about 7577.0601159025. The cubic root of 57411840 is about 385.7747708399.

The spelling of 57411840 in words is "fifty-seven million, four hundred eleven thousand, eight hundred forty".