216342402 has 16 divisors (see below), whose sum is σ = 435341280. Its totient is φ = 71671392.

The previous prime is 216342353. The next prime is 216342419. The reversal of 216342402 is 204243612.

216342402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109627 + ... + 111582.

It is an arithmetic number, because the mean of its divisors is an integer number (27208830).

Almost surely, 2^216342402 is an apocalyptic number.

216342402 is an abundant number, since it is smaller than the sum of its proper divisors (218998878).

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

216342402 is a wasteful number, since it uses less digits than its factorization.

216342402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221377.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 216342402 is about 14708.5825965659. The cubic root of 216342402 is about 600.3168715135.

The spelling of 216342402 in words is "two hundred sixteen million, three hundred forty-two thousand, four hundred two".