57426930 has 192 divisors, whose sum is σ = 177914880. Its totient is φ = 12700800.

The previous prime is 57426913. The next prime is 57426947. The reversal of 57426930 is 3962475.

It is an interprime number because it is at equal distance from previous prime (57426913) and next prime (57426947).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 808795 + ... + 808865.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 2^57426930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57426930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88957440).

57426930 is an abundant number, since it is smaller than the sum of its proper divisors (120487950).

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

57426930 is a wasteful number, since it uses less digits than its factorization.

57426930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 57426930 is about 7578.0558192719. The cubic root of 57426930 is about 385.8085666060.

The spelling of 57426930 in words is "fifty-seven million, four hundred twenty-six thousand, nine hundred thirty".