22790018 has 8 divisors (see below), whose sum is σ = 34912512. Its totient is φ = 11152516.

The previous prime is 22790017. The next prime is 22790029. The reversal of 22790018 is 81009722.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (22790017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121130 + ... + 121317.

It is an arithmetic number, because the mean of its divisors is an integer number (4364064).

Almost surely, 2^22790018 is an apocalyptic number.

22790018 is a deficient number, since it is larger than the sum of its proper divisors (12122494).

22790018 is a wasteful number, since it uses less digits than its factorization.

22790018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242496.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 22790018 is about 4773.8891901677. The cubic root of 22790018 is about 283.5186002455.

The spelling of 22790018 in words is "twenty-two million, seven hundred ninety thousand, eighteen".