16591422 has 64 divisors (see below), whose sum is σ = 37324800. Its totient is φ = 4892160.

The previous prime is 16591403. The next prime is 16591453. The reversal of 16591422 is 22419561.

It is a self number, because there is not a number n which added to its sum of digits gives 16591422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209979 + ... + 210057.

It is an arithmetic number, because the mean of its divisors is an integer number (583200).

Almost surely, 2^16591422 is an apocalyptic number.

16591422 is an abundant number, since it is smaller than the sum of its proper divisors (20733378).

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

16591422 is a wasteful number, since it uses less digits than its factorization.

16591422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201.

The product of its digits is 4320, while the sum is 30.

The square root of 16591422 is about 4073.2569278159. The cubic root of 16591422 is about 255.0514928692.

It can be divided in two parts, 1659 and 1422, that added together give a triangular number (3081 = T₇₈).

The spelling of 16591422 in words is "sixteen million, five hundred ninety-one thousand, four hundred twenty-two".