16408872 has 32 divisors (see below), whose sum is σ = 45580800. Its totient is φ = 5469552.

The previous prime is 16408849. The next prime is 16408883. The reversal of 16408872 is 27880461.

16408872 is a `hidden beast` number, since 1 + 640 + 8 + 8 + 7 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 37768 + ... + 38199.

It is an arithmetic number, because the mean of its divisors is an integer number (1424400).

Almost surely, 2^16408872 is an apocalyptic number.

16408872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16408872 is an abundant number, since it is smaller than the sum of its proper divisors (29171928).

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

16408872 is a wasteful number, since it uses less digits than its factorization.

16408872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75982 (or 75972 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 16408872 is about 4050.7865902810. The cubic root of 16408872 is about 254.1126249461.

The spelling of 16408872 in words is "sixteen million, four hundred eight thousand, eight hundred seventy-two".