16320408 has 96 divisors (see below), whose sum is σ = 46934160. Its totient is φ = 4700160.

The previous prime is 16320401. The next prime is 16320413. The reversal of 16320408 is 80402361.

It is a happy number.

16320408 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16320401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90078 + ... + 90258.

Almost surely, 2^16320408 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 16320408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23467080).

16320408 is an abundant number, since it is smaller than the sum of its proper divisors (30613752).

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

16320408 is a wasteful number, since it uses less digits than its factorization.

16320408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16320408 is about 4039.8524725539. The cubic root of 16320408 is about 253.6551419730.

Adding to 16320408 its reverse (80402361), we get a palindrome (96722769).

The spelling of 16320408 in words is "sixteen million, three hundred twenty thousand, four hundred eight".