22390937 has 8 divisors (see below), whose sum is σ = 23413056. Its totient is φ = 21372912.

The previous prime is 22390919. The next prime is 22390939. The reversal of 22390937 is 73909322.

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 22390937 - 2⁸ = 22390681 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22390897 and 22390906.

It is not an unprimeable number, because it can be changed into a prime (22390939) 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, 17483 + ... + 18719.

It is an arithmetic number, because the mean of its divisors is an integer number (2926632).

Almost surely, 2^22390937 is an apocalyptic number.

It is an amenable number.

22390937 is a deficient number, since it is larger than the sum of its proper divisors (1022119).

22390937 is a wasteful number, since it uses less digits than its factorization.

22390937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 22390937 is about 4731.9062754877. The cubic root of 22390937 is about 281.8539264944.

It can be divided in two parts, 2 and 2390937, that multiplied together give a palindrome (4781874).

The spelling of 22390937 in words is "twenty-two million, three hundred ninety thousand, nine hundred thirty-seven".