22748529 has 8 divisors (see below), whose sum is σ = 31927840. Its totient is φ = 14367456.

The previous prime is 22748519. The next prime is 22748597. The reversal of 22748529 is 92584722.

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

It is not a de Polignac number, because 22748529 - 2⁸ = 22748273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22748519) 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, 199492 + ... + 199605.

It is an arithmetic number, because the mean of its divisors is an integer number (3990980).

Almost surely, 2^22748529 is an apocalyptic number.

It is an amenable number.

22748529 is a deficient number, since it is larger than the sum of its proper divisors (9179311).

22748529 is a wasteful number, since it uses less digits than its factorization.

22748529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399119.

The product of its digits is 80640, while the sum is 39.

The square root of 22748529 is about 4769.5418018925. The cubic root of 22748529 is about 283.3464481434.

The spelling of 22748529 in words is "twenty-two million, seven hundred forty-eight thousand, five hundred twenty-nine".