16332408 has 64 divisors (see below), whose sum is σ = 45964800. Its totient is φ = 5372640.

The previous prime is 16332403. The next prime is 16332409. The reversal of 16332408 is 80423361.

It is a happy number.

16332408 is a `hidden beast` number, since 1 + 633 + 24 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16332403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17473 + ... + 18383.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 2^16332408 is an apocalyptic number.

16332408 is a gapful number since it is divisible by the number (18) 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 16332408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22982400).

16332408 is an abundant number, since it is smaller than the sum of its proper divisors (29632392).

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

16332408 is a wasteful number, since it uses less digits than its factorization.

16332408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 16332408 is about 4041.3374023954. The cubic root of 16332408 is about 253.7172955659.

Adding to 16332408 its reverse (80423361), we get a palindrome (96755769).

The spelling of 16332408 in words is "sixteen million, three hundred thirty-two thousand, four hundred eight".