16390860 has 24 divisors (see below), whose sum is σ = 45894576. Its totient is φ = 4370880.

The previous prime is 16390837. The next prime is 16390867. The reversal of 16390860 is 6809361.

It is not an unprimeable number, because it can be changed into a prime (16390867) 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 7 ways as a sum of consecutive naturals, for example, 136531 + ... + 136650.

It is an arithmetic number, because the mean of its divisors is an integer number (1912274).

Almost surely, 2^16390860 is an apocalyptic number.

16390860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16390860 is an abundant number, since it is smaller than the sum of its proper divisors (29503716).

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

16390860 is a wasteful number, since it uses less digits than its factorization.

16390860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273193 (or 273191 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16390860 is about 4048.5627079249. The cubic root of 16390860 is about 254.0196111917.

The spelling of 16390860 in words is "sixteen million, three hundred ninety thousand, eight hundred sixty".