22290039 has 32 divisors (see below), whose sum is σ = 34383360. Its totient is φ = 14261184.

The previous prime is 22290031. The next prime is 22290053. The reversal of 22290039 is 93009222.

It is not a de Polignac number, because 22290039 - 2³ = 22290031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22289994 and 22290021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22290031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84622 + ... + 84884.

It is an arithmetic number, because the mean of its divisors is an integer number (1074480).

Almost surely, 2^22290039 is an apocalyptic number.

22290039 is a deficient number, since it is larger than the sum of its proper divisors (12093321).

22290039 is a wasteful number, since it uses less digits than its factorization.

22290039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 22290039 is about 4721.2327839241. The cubic root of 22290039 is about 281.4299257594.

The spelling of 22290039 in words is "twenty-two million, two hundred ninety thousand, thirty-nine".