16996920 has 64 divisors (see below), whose sum is σ = 51408000. Its totient is φ = 4495488.

The previous prime is 16996913. The next prime is 16996927. The reversal of 16996920 is 2969961.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16996913) and next prime (16996927).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16996927) 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, 16171 + ... + 17189.

It is an arithmetic number, because the mean of its divisors is an integer number (803250).

Almost surely, 2^16996920 is an apocalyptic number.

16996920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16996920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25704000).

16996920 is an abundant number, since it is smaller than the sum of its proper divisors (34411080).

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

16996920 is a wasteful number, since it uses less digits than its factorization.

16996920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 16996920 is about 4122.7321038360. The cubic root of 16996920 is about 257.1126296038.

The spelling of 16996920 in words is "sixteen million, nine hundred ninety-six thousand, nine hundred twenty".