57420774 has 48 divisors (see below), whose sum is σ = 131601600. Its totient is φ = 18044208.

The previous prime is 57420763. The next prime is 57420791. The reversal of 57420774 is 47702475.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129397 + ... + 129839.

It is an arithmetic number, because the mean of its divisors is an integer number (2741700).

Almost surely, 2^57420774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57420774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65800800).

57420774 is an abundant number, since it is smaller than the sum of its proper divisors (74180826).

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

57420774 is a wasteful number, since it uses less digits than its factorization.

57420774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 57420774 is about 7577.6496356060. The cubic root of 57420774 is about 385.7947802610.

The spelling of 57420774 in words is "fifty-seven million, four hundred twenty thousand, seven hundred seventy-four".