22745989 has 8 divisors (see below), whose sum is σ = 26076608. Its totient is φ = 19435680.

The previous prime is 22745977. The next prime is 22746007. The reversal of 22745989 is 98954722.

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

It is a cyclic number.

It is not a de Polignac number, because 22745989 - 2⁹ = 22745477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22745929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2592 + ... + 7225.

It is an arithmetic number, because the mean of its divisors is an integer number (3259576).

Almost surely, 2^22745989 is an apocalyptic number.

It is an amenable number.

22745989 is a deficient number, since it is larger than the sum of its proper divisors (3330619).

22745989 is an equidigital number, since it uses as much as digits as its factorization.

22745989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155.

The product of its digits is 362880, while the sum is 46.

The square root of 22745989 is about 4769.2755215022. The cubic root of 22745989 is about 283.3359020144.

The spelling of 22745989 in words is "twenty-two million, seven hundred forty-five thousand, nine hundred eighty-nine".