57443426 has 4 divisors (see below), whose sum is σ = 86165142. Its totient is φ = 28721712.

The previous prime is 57443423. The next prime is 57443543. The reversal of 57443426 is 62434475.

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., 33930625 + 23512801 = 5825^2 + 4849^2 .

It is not an unprimeable number, because it can be changed into a prime (57443423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14360855 + ... + 14360858.

Almost surely, 2^57443426 is an apocalyptic number.

57443426 is a deficient number, since it is larger than the sum of its proper divisors (28721716).

57443426 is a wasteful number, since it uses less digits than its factorization.

57443426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28721715.

The product of its digits is 80640, while the sum is 35.

The square root of 57443426 is about 7579.1441469337. The cubic root of 57443426 is about 385.8455044958.

The spelling of 57443426 in words is "fifty-seven million, four hundred forty-three thousand, four hundred twenty-six".