16225884 has 18 divisors (see below), whose sum is σ = 41015520. Its totient is φ = 5408616.

The previous prime is 16225861. The next prime is 16225903. The reversal of 16225884 is 48852261.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 450719 = 16225884 / (1 + 6 + 2 + 2 + 5 + 8 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225324 + ... + 225395.

It is an arithmetic number, because the mean of its divisors is an integer number (2278640).

Almost surely, 2^16225884 is an apocalyptic number.

It is an amenable number.

16225884 is an abundant number, since it is smaller than the sum of its proper divisors (24789636).

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

16225884 is a wasteful number, since it uses less digits than its factorization.

16225884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450729 (or 450724 counting only the distinct ones).

The product of its digits is 30720, while the sum is 36.

The square root of 16225884 is about 4028.1365418764. The cubic root of 16225884 is about 253.1644896780.

The spelling of 16225884 in words is "sixteen million, two hundred twenty-five thousand, eight hundred eighty-four".