57750440 has 32 divisors (see below), whose sum is σ = 141752160. Its totient is φ = 21000000.

The previous prime is 57750421. The next prime is 57750457. The reversal of 57750440 is 4405775.

57750440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57750440² = 6670226640387200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57750397 and 57750406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65186 + ... + 66065.

It is an arithmetic number, because the mean of its divisors is an integer number (4429755).

Almost surely, 2^57750440 is an apocalyptic number.

It is an amenable number.

57750440 is an abundant number, since it is smaller than the sum of its proper divisors (84001720).

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

57750440 is a wasteful number, since it uses less digits than its factorization.

57750440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131273 (or 131269 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57750440 is about 7599.3710266048. The cubic root of 57750440 is about 386.5316842886.

The spelling of 57750440 in words is "fifty-seven million, seven hundred fifty thousand, four hundred forty".