16400882 has 4 divisors (see below), whose sum is σ = 24601326. Its totient is φ = 8200440.

The previous prime is 16400851. The next prime is 16400927. The reversal of 16400882 is 28800461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 5909761 = 3239^2 + 2431^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4100219 + ... + 4100222.

Almost surely, 2^16400882 is an apocalyptic number.

16400882 is a deficient number, since it is larger than the sum of its proper divisors (8200444).

16400882 is an equidigital number, since it uses as much as digits as its factorization.

16400882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8200443.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 16400882 is about 4049.8002419873. The cubic root of 16400882 is about 254.0713730853.

The spelling of 16400882 in words is "sixteen million, four hundred thousand, eight hundred eighty-two".