16890544 has 40 divisors (see below), whose sum is σ = 37586880. Its totient is φ = 7272000.

The previous prime is 16890541. The next prime is 16890581. The reversal of 16890544 is 44509861.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16890541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 5869.

It is an arithmetic number, because the mean of its divisors is an integer number (939672).

Almost surely, 2^16890544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16890544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18793440).

16890544 is an abundant number, since it is smaller than the sum of its proper divisors (20696336).

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

16890544 is a wasteful number, since it uses less digits than its factorization.

16890544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5089 (or 5083 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 16890544 is about 4109.8107012367. The cubic root of 16890544 is about 256.5751229916.

The spelling of 16890544 in words is "sixteen million, eight hundred ninety thousand, five hundred forty-four".