42936994 has 16 divisors (see below), whose sum is σ = 67545720. Its totient is φ = 20442240.

The previous prime is 42936967. The next prime is 42937039. The reversal of 42936994 is 49963924.

It can be written as a sum of positive squares in 4 ways, for example, as 32341969 + 10595025 = 5687^2 + 3255^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 837 + ... + 9304.

Almost surely, 2^42936994 is an apocalyptic number.

42936994 is a deficient number, since it is larger than the sum of its proper divisors (24608726).

42936994 is a wasteful number, since it uses less digits than its factorization.

42936994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245.

The product of its digits is 419904, while the sum is 46.

The square root of 42936994 is about 6552.6326007186. The cubic root of 42936994 is about 350.1686099168.

The spelling of 42936994 in words is "forty-two million, nine hundred thirty-six thousand, nine hundred ninety-four".