22091308 has 6 divisors (see below), whose sum is σ = 38659796. Its totient is φ = 11045652.

The previous prime is 22091299. The next prime is 22091341. The reversal of 22091308 is 80319022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2761410 + ... + 2761417.

Almost surely, 2^22091308 is an apocalyptic number.

It is an amenable number.

22091308 is a deficient number, since it is larger than the sum of its proper divisors (16568488).

22091308 is a wasteful number, since it uses less digits than its factorization.

22091308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5522831 (or 5522829 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 22091308 is about 4700.1391468764. The cubic root of 22091308 is about 280.5910474082.

The spelling of 22091308 in words is "twenty-two million, ninety-one thousand, three hundred eight".