16904442 has 16 divisors (see below), whose sum is σ = 34363872. Its totient is φ = 5542320.

The previous prime is 16904441. The next prime is 16904467. The reversal of 16904442 is 24440961.

It is not an unprimeable number, because it can be changed into a prime (16904441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22728 + ... + 23459.

It is an arithmetic number, because the mean of its divisors is an integer number (2147742).

Almost surely, 2^16904442 is an apocalyptic number.

16904442 is an abundant number, since it is smaller than the sum of its proper divisors (17459430).

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

16904442 is a wasteful number, since it uses less digits than its factorization.

16904442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46253.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 16904442 is about 4111.5011856985. The cubic root of 16904442 is about 256.6454760339.

The spelling of 16904442 in words is "sixteen million, nine hundred four thousand, four hundred forty-two".