16630940 has 12 divisors (see below), whose sum is σ = 34925016. Its totient is φ = 6652368.

The previous prime is 16630931. The next prime is 16630961. The reversal of 16630940 is 4903661.

It is a congruent number.

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, 415754 + ... + 415793.

It is an arithmetic number, because the mean of its divisors is an integer number (2910418).

Almost surely, 2^16630940 is an apocalyptic number.

16630940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16630940 is an abundant number, since it is smaller than the sum of its proper divisors (18294076).

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

16630940 is a wasteful number, since it uses less digits than its factorization.

16630940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831556 (or 831554 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 16630940 is about 4078.1049520580. The cubic root of 16630940 is about 255.2538290162.

The spelling of 16630940 in words is "sixteen million, six hundred thirty thousand, nine hundred forty".