16399360 has 44 divisors (see below), whose sum is σ = 39351528. Its totient is φ = 6557696.

The previous prime is 16399343. The next prime is 16399363. The reversal of 16399360 is 6399361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16399363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519 + ... + 6721.

Almost surely, 2^16399360 is an apocalyptic number.

16399360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16399360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19675764).

16399360 is an abundant number, since it is smaller than the sum of its proper divisors (22952168).

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

16399360 is an equidigital number, since it uses as much as digits as its factorization.

16399360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3228 (or 3210 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 16399360 is about 4049.6123271247. The cubic root of 16399360 is about 254.0635135773.

Subtracting from 16399360 its reverse (6399361), we obtain a palindrome (9999999).

The spelling of 16399360 in words is "sixteen million, three hundred ninety-nine thousand, three hundred sixty".