57742818 has 32 divisors (see below), whose sum is σ = 132430464. Its totient is φ = 16442112.

The previous prime is 57742793. The next prime is 57742819. The reversal of 57742818 is 81824775.

57742818 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 2×57742818² = 6668466061162248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57742818.

It is not an unprimeable number, because it can be changed into a prime (57742819) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11146 + ... + 15482.

It is an arithmetic number, because the mean of its divisors is an integer number (4138452).

Almost surely, 2^57742818 is an apocalyptic number.

57742818 is an abundant number, since it is smaller than the sum of its proper divisors (74687646).

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

57742818 is a wasteful number, since it uses less digits than its factorization.

57742818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4666.

The product of its digits is 125440, while the sum is 42.

The square root of 57742818 is about 7598.8695211854. The cubic root of 57742818 is about 386.5146785069.

The spelling of 57742818 in words is "fifty-seven million, seven hundred forty-two thousand, eight hundred eighteen".