16890142 has 16 divisors (see below), whose sum is σ = 27054720. Its totient is φ = 7889112.

The previous prime is 16890131. The next prime is 16890161. The reversal of 16890142 is 24109861.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2292 + ... + 6247.

It is an arithmetic number, because the mean of its divisors is an integer number (1690920).

Almost surely, 2^16890142 is an apocalyptic number.

16890142 is a deficient number, since it is larger than the sum of its proper divisors (10164578).

16890142 is a wasteful number, since it uses less digits than its factorization.

16890142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8607.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 16890142 is about 4109.7617935837. The cubic root of 16890142 is about 256.5730874539.

The spelling of 16890142 in words is "sixteen million, eight hundred ninety thousand, one hundred forty-two".