22090047 has 16 divisors (see below), whose sum is σ = 34378752. Its totient is φ = 12353760.

The previous prime is 22090039. The next prime is 22090087. The reversal of 22090047 is 74009022.

It is not a de Polignac number, because 22090047 - 2³ = 22090039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22089999 and 22090026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22090087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10204 + ... + 12177.

It is an arithmetic number, because the mean of its divisors is an integer number (2148672).

Almost surely, 2^22090047 is an apocalyptic number.

22090047 is a deficient number, since it is larger than the sum of its proper divisors (12288705).

22090047 is a wasteful number, since it uses less digits than its factorization.

22090047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22438.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 22090047 is about 4700.0049999973. The cubic root of 22090047 is about 280.5857084752.

Adding to 22090047 its reverse (74009022), we get a palindrome (96099069).

The spelling of 22090047 in words is "twenty-two million, ninety thousand, forty-seven".