16397376 has 56 divisors (see below), whose sum is σ = 44464224. Its totient is φ = 5329920.

The previous prime is 16397363. The next prime is 16397389. The reversal of 16397376 is 67379361.

It is an interprime number because it is at equal distance from previous prime (16397363) and next prime (16397389).

It is a nialpdrome in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6831 + ... + 8913.

It is an arithmetic number, because the mean of its divisors is an integer number (794004).

Almost surely, 2^16397376 is an apocalyptic number.

16397376 is a gapful number since it is divisible by the number (16) 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 16397376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22232112).

16397376 is an abundant number, since it is smaller than the sum of its proper divisors (28066848).

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

16397376 is a wasteful number, since it uses less digits than its factorization.

16397376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 2129 counting only the distinct ones).

The product of its digits is 142884, while the sum is 42.

The square root of 16397376 is about 4049.3673579956. The cubic root of 16397376 is about 254.0532676014.

The spelling of 16397376 in words is "sixteen million, three hundred ninety-seven thousand, three hundred seventy-six".