22748039 has 4 divisors (see below), whose sum is σ = 22759056. Its totient is φ = 22737024.

The previous prime is 22748029. The next prime is 22748087. The reversal of 22748039 is 93084722.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22748039 - 2⁸ = 22747783 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 (22748009) 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, 1379 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (5689764).

Almost surely, 2^22748039 is an apocalyptic number.

22748039 is a deficient number, since it is larger than the sum of its proper divisors (11017).

22748039 is an equidigital number, since it uses as much as digits as its factorization.

22748039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 22748039 is about 4769.4904339982. The cubic root of 22748039 is about 283.3444137151.

The spelling of 22748039 in words is "twenty-two million, seven hundred forty-eight thousand, thirty-nine".