57420146 has 16 divisors (see below), whose sum is σ = 98535744. Its totient is φ = 24583344.

The previous prime is 57420137. The next prime is 57420149. The reversal of 57420146 is 64102475.

57420146 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 2×57420146² = 6594146333322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57420149) 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 7 ways as a sum of consecutive naturals, for example, 19976 + ... + 22668.

It is an arithmetic number, because the mean of its divisors is an integer number (6158484).

Almost surely, 2^57420146 is an apocalyptic number.

57420146 is a deficient number, since it is larger than the sum of its proper divisors (41115598).

57420146 is a wasteful number, since it uses less digits than its factorization.

57420146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4225.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 57420146 is about 7577.6081978418. The cubic root of 57420146 is about 385.7933738014.

The spelling of 57420146 in words is "fifty-seven million, four hundred twenty thousand, one hundred forty-six".