16309902 has 64 divisors (see below), whose sum is σ = 40310784. Its totient is φ = 4293120.

The previous prime is 16309897. The next prime is 16309939. The reversal of 16309902 is 20990361.

It is a self number, because there is not a number n which added to its sum of digits gives 16309902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37627 + ... + 38057.

It is an arithmetic number, because the mean of its divisors is an integer number (629856).

Almost surely, 2^16309902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16309902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20155392).

16309902 is an abundant number, since it is smaller than the sum of its proper divisors (24000882).

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

16309902 is a wasteful number, since it uses less digits than its factorization.

16309902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 16309902 is about 4038.5519682183. The cubic root of 16309902 is about 253.6007014845.

The spelling of 16309902 in words is "sixteen million, three hundred nine thousand, nine hundred two".