57426634 has 4 divisors (see below), whose sum is σ = 86139954. Its totient is φ = 28713316.

The previous prime is 57426631. The next prime is 57426661. The reversal of 57426634 is 43662475.

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

It can be written as a sum of positive squares in only one way, i.e., 36036009 + 21390625 = 6003^2 + 4625^2 .

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57426593 and 57426602.

It is not an unprimeable number, because it can be changed into a prime (57426631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14356657 + ... + 14356660.

Almost surely, 2^57426634 is an apocalyptic number.

57426634 is a deficient number, since it is larger than the sum of its proper divisors (28713320).

57426634 is a wasteful number, since it uses less digits than its factorization.

57426634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28713319.

The product of its digits is 120960, while the sum is 37.

The square root of 57426634 is about 7578.0362891715. The cubic root of 57426634 is about 385.8079037374.

The spelling of 57426634 in words is "fifty-seven million, four hundred twenty-six thousand, six hundred thirty-four".