16631422 has 16 divisors (see below), whose sum is σ = 26341200. Its totient is φ = 7853760.

The previous prime is 16631401. The next prime is 16631429. The reversal of 16631422 is 22413661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16631429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20154 + ... + 20962.

It is an arithmetic number, because the mean of its divisors is an integer number (1646325).

Almost surely, 2^16631422 is an apocalyptic number.

16631422 is a deficient number, since it is larger than the sum of its proper divisors (9709778).

16631422 is a wasteful number, since it uses less digits than its factorization.

16631422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371.

The product of its digits is 1728, while the sum is 25.

The square root of 16631422 is about 4078.1640477058. The cubic root of 16631422 is about 255.2562949252.

The spelling of 16631422 in words is "sixteen million, six hundred thirty-one thousand, four hundred twenty-two".