42712816 has 20 divisors (see below), whose sum is σ = 84775824. Its totient is φ = 20835200.

The previous prime is 42712807. The next prime is 42712829. The reversal of 42712816 is 61821724.

It is a congruent number.

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, 31900 + ... + 33211.

Almost surely, 2^42712816 is an apocalyptic number.

It is an amenable number.

42712816 is a deficient number, since it is larger than the sum of its proper divisors (42063008).

42712816 is a wasteful number, since it uses less digits than its factorization.

42712816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65160 (or 65154 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 42712816 is about 6535.5042651658. The cubic root of 42712816 is about 349.5581253617.

The spelling of 42712816 in words is "forty-two million, seven hundred twelve thousand, eight hundred sixteen".