22290049 has 4 divisors (see below), whose sum is σ = 22302720. Its totient is φ = 22277380.

The previous prime is 22290031. The next prime is 22290053. The reversal of 22290049 is 94009222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94009222 = 2 ⋅47004611.

It is a cyclic number.

It is not a de Polignac number, because 22290049 - 2⁹ = 22289537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22289999 and 22290026.

It is not an unprimeable number, because it can be changed into a prime (22290449) 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, 3169 + ... + 7390.

It is an arithmetic number, because the mean of its divisors is an integer number (5575680).

Almost surely, 2^22290049 is an apocalyptic number.

It is an amenable number.

22290049 is a deficient number, since it is larger than the sum of its proper divisors (12671).

22290049 is a wasteful number, since it uses less digits than its factorization.

22290049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 22290049 is about 4721.2338429694. The cubic root of 22290049 is about 281.4299678454.

The spelling of 22290049 in words is "twenty-two million, two hundred ninety thousand, forty-nine".