216334902 has 40 divisors (see below), whose sum is σ = 504785016. Its totient is φ = 61805856.

The previous prime is 216334883. The next prime is 216334903. The reversal of 216334902 is 209433612.

It is a self number, because there is not a number n which added to its sum of digits gives 216334902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216334903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6898 + ... + 21914.

Almost surely, 2^216334902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216334902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252392508).

216334902 is an abundant number, since it is smaller than the sum of its proper divisors (288450114).

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

216334902 is an equidigital number, since it uses as much as digits as its factorization.

216334902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15050 (or 15029 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 216334902 is about 14708.3276411698. The cubic root of 216334902 is about 600.3099343181.

The spelling of 216334902 in words is "two hundred sixteen million, three hundred thirty-four thousand, nine hundred two".