57426726 has 24 divisors (see below), whose sum is σ = 133605720. Its totient is φ = 16407552.

The previous prime is 57426689. The next prime is 57426739. The reversal of 57426726 is 62762475.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97371 + ... + 97958.

It is an arithmetic number, because the mean of its divisors is an integer number (5566905).

Almost surely, 2^57426726 is an apocalyptic number.

57426726 is an abundant number, since it is smaller than the sum of its proper divisors (76178994).

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

57426726 is a wasteful number, since it uses less digits than its factorization.

57426726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195348 (or 195341 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 57426726 is about 7578.0423593432. The cubic root of 57426726 is about 385.8081097644.

The spelling of 57426726 in words is "fifty-seven million, four hundred twenty-six thousand, seven hundred twenty-six".