42959816 has 16 divisors (see below), whose sum is σ = 85288140. Its totient is φ = 20216320.

The previous prime is 42959809. The next prime is 42959857. The reversal of 42959816 is 61895924.

It can be written as a sum of positive squares in 2 ways, for example, as 42954916 + 4900 = 6554^2 + 70^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157805 + ... + 158076.

Almost surely, 2^42959816 is an apocalyptic number.

It is an amenable number.

42959816 is a deficient number, since it is larger than the sum of its proper divisors (42328324).

42959816 is a wasteful number, since it uses less digits than its factorization.

42959816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315904 (or 315900 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 42959816 is about 6554.3738068560. The cubic root of 42959816 is about 350.2306398184.

The spelling of 42959816 in words is "forty-two million, nine hundred fifty-nine thousand, eight hundred sixteen".