16624422 has 12 divisors (see below), whose sum is σ = 36019620. Its totient is φ = 5541468.

The previous prime is 16624409. The next prime is 16624451. The reversal of 16624422 is 22442661.

16624422 is a `hidden beast` number, since 16 + 624 + 4 + 22 = 666.

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, 461772 + ... + 461807.

It is an arithmetic number, because the mean of its divisors is an integer number (3001635).

Almost surely, 2^16624422 is an apocalyptic number.

16624422 is an abundant number, since it is smaller than the sum of its proper divisors (19395198).

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

16624422 is a wasteful number, since it uses less digits than its factorization.

16624422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923587 (or 923584 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 16624422 is about 4077.3057280513. The cubic root of 16624422 is about 255.2204782884.

It can be divided in two parts, 1662 and 4422, that added together give a square (6084 = 78²).

The spelling of 16624422 in words is "sixteen million, six hundred twenty-four thousand, four hundred twenty-two".