22159970 has 16 divisors (see below), whose sum is σ = 45586368. Its totient is φ = 7597680.

The previous prime is 22159937. The next prime is 22159979. The reversal of 22159970 is 7995122.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 22159970.

It is not an unprimeable number, because it can be changed into a prime (22159979) 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, 158216 + ... + 158355.

It is an arithmetic number, because the mean of its divisors is an integer number (2849148).

Almost surely, 2^22159970 is an apocalyptic number.

22159970 is an abundant number, since it is smaller than the sum of its proper divisors (23426398).

22159970 is a wasteful number, since it uses less digits than its factorization.

22159970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316585.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 22159970 is about 4707.4377319302. The cubic root of 22159970 is about 280.8814484524.

The spelling of 22159970 in words is "twenty-two million, one hundred fifty-nine thousand, nine hundred seventy".