16489144 has 32 divisors (see below), whose sum is σ = 35464320. Its totient is φ = 7040736.

The previous prime is 16489141. The next prime is 16489147. The reversal of 16489144 is 44198461.

It is an interprime number because it is at equal distance from previous prime (16489141) and next prime (16489147).

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16489141) 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, 29007 + ... + 29569.

It is an arithmetic number, because the mean of its divisors is an integer number (1108260).

Almost surely, 2^16489144 is an apocalyptic number.

16489144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16489144 is an abundant number, since it is smaller than the sum of its proper divisors (18975176).

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

16489144 is a wasteful number, since it uses less digits than its factorization.

16489144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1099 (or 1095 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 16489144 is about 4060.6827012216. The cubic root of 16489144 is about 254.5263230210.

The spelling of 16489144 in words is "sixteen million, four hundred eighty-nine thousand, one hundred forty-four".