42744424 has 16 divisors (see below), whose sum is σ = 80439300. Its totient is φ = 21293952.

The previous prime is 42744413. The next prime is 42744431. The reversal of 42744424 is 42444724.

It can be written as a sum of positive squares in 2 ways, for example, as 42484324 + 260100 = 6518^2 + 510^2 .

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7429 + ... + 11860.

Almost surely, 2^42744424 is an apocalyptic number.

It is an amenable number.

42744424 is a deficient number, since it is larger than the sum of its proper divisors (37694876).

42744424 is a wasteful number, since it uses less digits than its factorization.

42744424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19572 (or 19568 counting only the distinct ones).

The product of its digits is 28672, while the sum is 31.

The square root of 42744424 is about 6537.9219940284. The cubic root of 42744424 is about 349.6443298467.

The spelling of 42744424 in words is "forty-two million, seven hundred forty-four thousand, four hundred twenty-four".