402215216 has 20 divisors (see below), whose sum is σ = 839237952. Its totient is φ = 185637696.

The previous prime is 402215167. The next prime is 402215221. The reversal of 402215216 is 612512204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402215191 and 402215200.

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, 966656 + ... + 967071.

Almost surely, 2^402215216 is an apocalyptic number.

It is an amenable number.

402215216 is an abundant number, since it is smaller than the sum of its proper divisors (437022736).

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

402215216 is a wasteful number, since it uses less digits than its factorization.

402215216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933748 (or 1933742 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 402215216 is about 20055.3039368642. The cubic root of 402215216 is about 738.1639508153.

The spelling of 402215216 in words is "four hundred two million, two hundred fifteen thousand, two hundred sixteen".