16990896 has 80 divisors (see below), whose sum is σ = 48045536. Its totient is φ = 5142528.

The previous prime is 16990889. The next prime is 16990913. The reversal of 16990896 is 69809961.

It is a super-3 number, since 3×16990896³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45366 + ... + 45738.

Almost surely, 2^16990896 is an apocalyptic number.

16990896 is a gapful number since it is divisible by the number (16) 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 16990896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24022768).

16990896 is an abundant number, since it is smaller than the sum of its proper divisors (31054640).

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

16990896 is a wasteful number, since it uses less digits than its factorization.

16990896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 16990896 is about 4122.0014556038. The cubic root of 16990896 is about 257.0822509725.

The spelling of 16990896 in words is "sixteen million, nine hundred ninety thousand, eight hundred ninety-six".