216963402 has 8 divisors (see below), whose sum is σ = 433926816. Its totient is φ = 72321132.

The previous prime is 216963391. The next prime is 216963419. The reversal of 216963402 is 204369612.

216963402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

216963402 is an admirable 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, 18080278 + ... + 18080289.

It is an arithmetic number, because the mean of its divisors is an integer number (54240852).

Almost surely, 2^216963402 is an apocalyptic number.

216963402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

216963402 is a wasteful number, since it uses less digits than its factorization.

216963402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36160572.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 216963402 is about 14729.6775932130. The cubic root of 216963402 is about 600.8907159431.

The spelling of 216963402 in words is "two hundred sixteen million, nine hundred sixty-three thousand, four hundred two".