18046722 has 8 divisors (see below), whose sum is σ = 36093456. Its totient is φ = 6015572.

The previous prime is 18046711. The next prime is 18046723. The reversal of 18046722 is 22764081.

It is a sphenic number, since it is the product of 3 distinct primes.

18046722 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 18046722.

It is not an unprimeable number, because it can be changed into a prime (18046723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503888 + ... + 1503899.

It is an arithmetic number, because the mean of its divisors is an integer number (4511682).

Almost surely, 2^18046722 is an apocalyptic number.

18046722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18046722 is a wasteful number, since it uses less digits than its factorization.

18046722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3007792.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 18046722 is about 4248.1433591629. The cubic root of 18046722 is about 262.3006958814.

The spelling of 18046722 in words is "eighteen million, forty-six thousand, seven hundred twenty-two".