22302993 has 8 divisors (see below), whose sum is σ = 29865888. Its totient is φ = 14804384.

The previous prime is 22302989. The next prime is 22303007. The reversal of 22302993 is 39920322.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22302993 - 2² = 22302989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22302993.

It is not an unprimeable number, because it can be changed into a prime (22302953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15255 + ... + 16652.

It is an arithmetic number, because the mean of its divisors is an integer number (3733236).

Almost surely, 2^22302993 is an apocalyptic number.

It is an amenable number.

22302993 is a deficient number, since it is larger than the sum of its proper divisors (7562895).

22302993 is a wasteful number, since it uses less digits than its factorization.

22302993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32143.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 22302993 is about 4722.6044721107. The cubic root of 22302993 is about 281.4844334740.

The spelling of 22302993 in words is "twenty-two million, three hundred two thousand, nine hundred ninety-three".