16408880 has 20 divisors (see below), whose sum is σ = 38150832. Its totient is φ = 6563520.

The previous prime is 16408849. The next prime is 16408883. The reversal of 16408880 is 8880461.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 16408880.

It is not an unprimeable number, because it can be changed into a prime (16408883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102476 + ... + 102635.

Almost surely, 2^16408880 is an apocalyptic number.

16408880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16408880 is an abundant number, since it is smaller than the sum of its proper divisors (21741952).

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

16408880 is a wasteful number, since it uses less digits than its factorization.

16408880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205124 (or 205118 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 16408880 is about 4050.7875777434. The cubic root of 16408880 is about 254.1126662429.

The spelling of 16408880 in words is "sixteen million, four hundred eight thousand, eight hundred eighty".