42447616 has 18 divisors (see below), whose sum is σ = 84729932. Its totient is φ = 21223680.

The previous prime is 42447607. The next prime is 42447617. The reversal of 42447616 is 61674424.

It is not an unprimeable number, because it can be changed into a prime (42447617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82650 + ... + 83161.

Almost surely, 2^42447616 is an apocalyptic number.

It is an amenable number.

42447616 is a deficient number, since it is larger than the sum of its proper divisors (42282316).

42447616 is an equidigital number, since it uses as much as digits as its factorization.

42447616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165827 (or 165813 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 42447616 is about 6515.1834970321. The cubic root of 42447616 is about 348.8331646495.

The spelling of 42447616 in words is "forty-two million, four hundred forty-seven thousand, six hundred sixteen".