16340904 has 48 divisors (see below), whose sum is σ = 44877300. Its totient is φ = 5370624.

The previous prime is 16340899. The next prime is 16340983. The reversal of 16340904 is 40904361.

It can be written as a sum of positive squares in 2 ways, for example, as 16016004 + 324900 = 4002^2 + 570^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3702 + ... + 6810.

Almost surely, 2^16340904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16340904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22438650).

16340904 is an abundant number, since it is smaller than the sum of its proper divisors (28536396).

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

16340904 is a wasteful number, since it uses less digits than its factorization.

16340904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194 (or 3187 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 16340904 is about 4042.3884029123. The cubic root of 16340904 is about 253.7612819043.

The spelling of 16340904 in words is "sixteen million, three hundred forty thousand, nine hundred four".