16223642 has 16 divisors (see below), whose sum is σ = 25261632. Its totient is φ = 7808640.

The previous prime is 16223629. The next prime is 16223651. The reversal of 16223642 is 24632261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4778 + ... + 7434.

It is an arithmetic number, because the mean of its divisors is an integer number (1578852).

Almost surely, 2^16223642 is an apocalyptic number.

16223642 is a deficient number, since it is larger than the sum of its proper divisors (9037990).

16223642 is a wasteful number, since it uses less digits than its factorization.

16223642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773.

The product of its digits is 3456, while the sum is 26.

The square root of 16223642 is about 4027.8582398093. The cubic root of 16223642 is about 253.1528288664.

The spelling of 16223642 in words is "sixteen million, two hundred twenty-three thousand, six hundred forty-two".