57448726 has 4 divisors (see below), whose sum is σ = 86173092. Its totient is φ = 28724362.

The previous prime is 57448693. The next prime is 57448747. The reversal of 57448726 is 62784475.

57448726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×57448726² = 6600712238046152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 14362180 + ... + 14362183.

It is an arithmetic number, because the mean of its divisors is an integer number (21543273).

Almost surely, 2^57448726 is an apocalyptic number.

57448726 is a deficient number, since it is larger than the sum of its proper divisors (28724366).

57448726 is a wasteful number, since it uses less digits than its factorization.

57448726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28724365.

The product of its digits is 376320, while the sum is 43.

The square root of 57448726 is about 7579.4937825689. The cubic root of 57448726 is about 385.8573707697.

The spelling of 57448726 in words is "fifty-seven million, four hundred forty-eight thousand, seven hundred twenty-six".