22645023 has 8 divisors (see below), whose sum is σ = 30835968. Its totient is φ = 14775384.

The previous prime is 22645019. The next prime is 22645039. The reversal of 22645023 is 32054622.

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

It is not a de Polignac number, because 22645023 - 2² = 22645019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22644984 and 22645002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22645043) 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 7 ways as a sum of consecutive naturals, for example, 80161 + ... + 80442.

It is an arithmetic number, because the mean of its divisors is an integer number (3854496).

Almost surely, 2^22645023 is an apocalyptic number.

22645023 is a deficient number, since it is larger than the sum of its proper divisors (8190945).

22645023 is a wasteful number, since it uses less digits than its factorization.

22645023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160653.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22645023 is about 4758.6787031696. The cubic root of 22645023 is about 282.9160517983.

Adding to 22645023 its reverse (32054622), we get a palindrome (54699645).

The spelling of 22645023 in words is "twenty-two million, six hundred forty-five thousand, twenty-three".