16890494 has 8 divisors (see below), whose sum is σ = 25360560. Its totient is φ = 8436976.

The previous prime is 16890493. The next prime is 16890527. The reversal of 16890494 is 49409861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154 + ... + 5925.

It is an arithmetic number, because the mean of its divisors is an integer number (3170070).

Almost surely, 2^16890494 is an apocalyptic number.

16890494 is a deficient number, since it is larger than the sum of its proper divisors (8470066).

16890494 is a wasteful number, since it uses less digits than its factorization.

16890494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 16890494 is about 4109.8046182270. The cubic root of 16890494 is about 256.5748698170.

The spelling of 16890494 in words is "sixteen million, eight hundred ninety thousand, four hundred ninety-four".