16345836 has 72 divisors (see below), whose sum is σ = 45405360. Its totient is φ = 4927104.

The previous prime is 16345817. The next prime is 16345841. The reversal of 16345836 is 63854361.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 16345836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24475 + ... + 25133.

It is an arithmetic number, because the mean of its divisors is an integer number (630630).

Almost surely, 2^16345836 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 16345836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22702680).

16345836 is an abundant number, since it is smaller than the sum of its proper divisors (29059524).

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

16345836 is a wasteful number, since it uses less digits than its factorization.

16345836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 730 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 16345836 is about 4042.9983922826. The cubic root of 16345836 is about 253.7868093527.

The spelling of 16345836 in words is "sixteen million, three hundred forty-five thousand, eight hundred thirty-six".