22818901 has 4 divisors (see below), whose sum is σ = 26078752. Its totient is φ = 19559052.

The previous prime is 22818889. The next prime is 22818931. The reversal of 22818901 is 10981822.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22818901 - 2⁵ = 22818869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22818931) 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, 1629915 + ... + 1629928.

It is an arithmetic number, because the mean of its divisors is an integer number (6519688).

Almost surely, 2^22818901 is an apocalyptic number.

It is an amenable number.

22818901 is a deficient number, since it is larger than the sum of its proper divisors (3259851).

22818901 is an equidigital number, since it uses as much as digits as its factorization.

22818901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259850.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 22818901 is about 4776.9133339427. The cubic root of 22818901 is about 283.6383224088.

The spelling of 22818901 in words is "twenty-two million, eight hundred eighteen thousand, nine hundred one".