22794309 has 6 divisors (see below), whose sum is σ = 32925126. Its totient is φ = 15196200.

The previous prime is 22794301. The next prime is 22794313. The reversal of 22794309 is 90349722.

It can be written as a sum of positive squares in only one way, i.e., 22297284 + 497025 = 4722^2 + 705^2 .

It is not a de Polignac number, because 22794309 - 2³ = 22794301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22794301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1266342 + ... + 1266359.

It is an arithmetic number, because the mean of its divisors is an integer number (5487521).

Almost surely, 2^22794309 is an apocalyptic number.

It is an amenable number.

22794309 is a deficient number, since it is larger than the sum of its proper divisors (10130817).

22794309 is a wasteful number, since it uses less digits than its factorization.

22794309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532707 (or 2532704 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 22794309 is about 4774.3385929362. The cubic root of 22794309 is about 283.5363931519.

The spelling of 22794309 in words is "twenty-two million, seven hundred ninety-four thousand, three hundred nine".