16885020 has 48 divisors (see below), whose sum is σ = 47472768. Its totient is φ = 4484160.

The previous prime is 16885019. The next prime is 16885027. The reversal of 16885020 is 2058861.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16885027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20415 + ... + 21225.

It is an arithmetic number, because the mean of its divisors is an integer number (989016).

Almost surely, 2^16885020 is an apocalyptic number.

16885020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16885020 is an abundant number, since it is smaller than the sum of its proper divisors (30587748).

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

16885020 is a wasteful number, since it uses less digits than its factorization.

16885020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 16885020 is about 4109.1385958617. The cubic root of 16885020 is about 256.5471492425.

The spelling of 16885020 in words is "sixteen million, eight hundred eighty-five thousand, twenty".