57406068 has 144 divisors (see below), whose sum is σ = 165110400. Its totient is φ = 16727040.

The previous prime is 57406067. The next prime is 57406073. The reversal of 57406068 is 86060475.

It is a happy number.

57406068 is a `hidden beast` number, since 5 + 7 + 40 + 606 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57406067) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 644968 + ... + 645056.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^57406068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57406068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82555200).

57406068 is an abundant number, since it is smaller than the sum of its proper divisors (107704332).

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

57406068 is a wasteful number, since it uses less digits than its factorization.

57406068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 57406068 is about 7576.6792198166. The cubic root of 57406068 is about 385.7618422257.

The spelling of 57406068 in words is "fifty-seven million, four hundred six thousand, sixty-eight".