22681970 has 8 divisors (see below), whose sum is σ = 40827564. Its totient is φ = 9072784.

The previous prime is 22681969. The next prime is 22682003. The reversal of 22681970 is 7918622.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22024249 + 657721 = 4693^2 + 811^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 22681970.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134089 + ... + 1134108.

Almost surely, 2^22681970 is an apocalyptic number.

22681970 is a deficient number, since it is larger than the sum of its proper divisors (18145594).

22681970 is a wasteful number, since it uses less digits than its factorization.

22681970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268204.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 22681970 is about 4762.5591859839. The cubic root of 22681970 is about 283.0698342229.

The spelling of 22681970 in words is "twenty-two million, six hundred eighty-one thousand, nine hundred seventy".