16333820 has 12 divisors (see below), whose sum is σ = 34301064. Its totient is φ = 6533520.

The previous prime is 16333817. The next prime is 16333847. The reversal of 16333820 is 2833361.

It is a self number, because there is not a number n which added to its sum of digits gives 16333820.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408326 + ... + 408365.

It is an arithmetic number, because the mean of its divisors is an integer number (2858422).

Almost surely, 2^16333820 is an apocalyptic number.

16333820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16333820 is an abundant number, since it is smaller than the sum of its proper divisors (17967244).

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

16333820 is a wasteful number, since it uses less digits than its factorization.

16333820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816700 (or 816698 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 16333820 is about 4041.5120932641. The cubic root of 16333820 is about 253.7246069698.

The spelling of 16333820 in words is "sixteen million, three hundred thirty-three thousand, eight hundred twenty".