16899426 has 12 divisors (see below), whose sum is σ = 36615462. Its totient is φ = 5633136.

The previous prime is 16899413. The next prime is 16899497. The reversal of 16899426 is 62499861.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16818201 + 81225 = 4101^2 + 285^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 469411 + ... + 469446.

Almost surely, 2^16899426 is an apocalyptic number.

16899426 is an abundant number, since it is smaller than the sum of its proper divisors (19716036).

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

16899426 is a wasteful number, since it uses less digits than its factorization.

16899426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938865 (or 938862 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 16899426 is about 4110.8911442654. The cubic root of 16899426 is about 256.6200889974.

The spelling of 16899426 in words is "sixteen million, eight hundred ninety-nine thousand, four hundred twenty-six".