42615216 has 120 divisors (see below), whose sum is σ = 138554624. Its totient is φ = 11975040.

The previous prime is 42615203. The next prime is 42615241. The reversal of 42615216 is 61251624.

42615216 is a `hidden beast` number, since 42 + 615 + 2 + 1 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 42615216.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67221 + ... + 67851.

Almost surely, 2^42615216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42615216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69277312).

42615216 is an abundant number, since it is smaller than the sum of its proper divisors (95939408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42615216 is a wasteful number, since it uses less digits than its factorization.

42615216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 710 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 42615216 is about 6528.0330881514. The cubic root of 42615216 is about 349.2916722197.

The spelling of 42615216 in words is "forty-two million, six hundred fifteen thousand, two hundred sixteen".