18422733 has 16 divisors (see below), whose sum is σ = 28391040. Its totient is φ = 10407936.

The previous prime is 18422693. The next prime is 18422737. The reversal of 18422733 is 33722481.

It is not a de Polignac number, because 18422733 - 2⁶ = 18422669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18422733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18422737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3060 + ... + 6797.

It is an arithmetic number, because the mean of its divisors is an integer number (1774440).

Almost surely, 2^18422733 is an apocalyptic number.

It is an amenable number.

18422733 is a deficient number, since it is larger than the sum of its proper divisors (9968307).

18422733 is an equidigital number, since it uses as much as digits as its factorization.

18422733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956.

The product of its digits is 8064, while the sum is 30.

The square root of 18422733 is about 4292.1711289276. The cubic root of 18422733 is about 264.1099031620.

The spelling of 18422733 in words is "eighteen million, four hundred twenty-two thousand, seven hundred thirty-three".