57402386 has 8 divisors (see below), whose sum is σ = 86152764. Its totient is φ = 28684800.

The previous prime is 57402383. The next prime is 57402391. The reversal of 57402386 is 68320475.

It is a happy number.

57402386 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43970161 + 13432225 = 6631^2 + 3665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57402383) 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 3 ways as a sum of consecutive naturals, for example, 3215 + ... + 11186.

Almost surely, 2^57402386 is an apocalyptic number.

57402386 is a deficient number, since it is larger than the sum of its proper divisors (28750378).

57402386 is a wasteful number, since it uses less digits than its factorization.

57402386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16396.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 57402386 is about 7576.4362334808. The cubic root of 57402386 is about 385.7535945176.

The spelling of 57402386 in words is "fifty-seven million, four hundred two thousand, three hundred eighty-six".