22622391 has 12 divisors (see below), whose sum is σ = 35647560. Its totient is φ = 13710480.

The previous prime is 22622387. The next prime is 22622401. The reversal of 22622391 is 19322622.

22622391 is a `hidden beast` number, since 2 + 2 + 622 + 39 + 1 = 666.

It is not a de Polignac number, because 22622391 - 2² = 22622387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22622351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114156 + ... + 114353.

It is an arithmetic number, because the mean of its divisors is an integer number (2970630).

Almost surely, 2^22622391 is an apocalyptic number.

22622391 is a deficient number, since it is larger than the sum of its proper divisors (13025169).

22622391 is a wasteful number, since it uses less digits than its factorization.

22622391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228526 (or 228523 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 22622391 is about 4756.3001377121. The cubic root of 22622391 is about 282.8217692657.

The spelling of 22622391 in words is "twenty-two million, six hundred twenty-two thousand, three hundred ninety-one".