16194820 has 12 divisors (see below), whose sum is σ = 34009164. Its totient is φ = 6477920.

The previous prime is 16194817. The next prime is 16194833. The reversal of 16194820 is 2849161.

It is a happy number.

16194820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 9351364 = 2616^2 + 3058^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404851 + ... + 404890.

It is an arithmetic number, because the mean of its divisors is an integer number (2834097).

Almost surely, 2^16194820 is an apocalyptic number.

16194820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16194820 is an abundant number, since it is smaller than the sum of its proper divisors (17814344).

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

16194820 is a wasteful number, since it uses less digits than its factorization.

16194820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809750 (or 809748 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 16194820 is about 4024.2788173783. The cubic root of 16194820 is about 253.0028276957.

The spelling of 16194820 in words is "sixteen million, one hundred ninety-four thousand, eight hundred twenty".