16402884 has 12 divisors (see below), whose sum is σ = 38273424. Its totient is φ = 5467624.

The previous prime is 16402879. The next prime is 16402931. The reversal of 16402884 is 48820461.

16402884 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 tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683442 + ... + 683465.

It is an arithmetic number, because the mean of its divisors is an integer number (3189452).

Almost surely, 2^16402884 is an apocalyptic number.

It is an amenable number.

16402884 is an abundant number, since it is smaller than the sum of its proper divisors (21870540).

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

16402884 is a wasteful number, since it uses less digits than its factorization.

16402884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366914 (or 1366912 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 16402884 is about 4050.0474071299. The cubic root of 16402884 is about 254.0817105414.

The spelling of 16402884 in words is "sixteen million, four hundred two thousand, eight hundred eighty-four".