16390902 has 48 divisors (see below), whose sum is σ = 36542016. Its totient is φ = 4897200.

The previous prime is 16390879. The next prime is 16390903. The reversal of 16390902 is 20909361.

It is a self number, because there is not a number n which added to its sum of digits gives 16390902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77577 + ... + 77787.

It is an arithmetic number, because the mean of its divisors is an integer number (761292).

Almost surely, 2^16390902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16390902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18271008).

16390902 is an abundant number, since it is smaller than the sum of its proper divisors (20151114).

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

16390902 is a wasteful number, since it uses less digits than its factorization.

16390902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 334 counting only the distinct ones).

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

The square root of 16390902 is about 4048.5678949475. The cubic root of 16390902 is about 254.0198281584.

The spelling of 16390902 in words is "sixteen million, three hundred ninety thousand, nine hundred two".