16990146 has 24 divisors (see below), whose sum is σ = 38413440. Its totient is φ = 5417016.

The previous prime is 16990111. The next prime is 16990151. The reversal of 16990146 is 64109961.

It is a super-2 number, since 2×16990146² = 577330122202632, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16990146.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20106 + ... + 20933.

It is an arithmetic number, because the mean of its divisors is an integer number (1600560).

Almost surely, 2^16990146 is an apocalyptic number.

16990146 is an abundant number, since it is smaller than the sum of its proper divisors (21423294).

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

16990146 is a wasteful number, since it uses less digits than its factorization.

16990146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41070 (or 41067 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16990146 is about 4121.9104793773. The cubic root of 16990146 is about 257.0784682698.

The spelling of 16990146 in words is "sixteen million, nine hundred ninety thousand, one hundred forty-six".