22981970 has 16 divisors (see below), whose sum is σ = 45128448. Its totient is φ = 8357040.

The previous prime is 22981957. The next prime is 22981997. The reversal of 22981970 is 7918922.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104354 + ... + 104573.

It is an arithmetic number, because the mean of its divisors is an integer number (2820528).

Almost surely, 2^22981970 is an apocalyptic number.

22981970 is a deficient number, since it is larger than the sum of its proper divisors (22146478).

22981970 is a wasteful number, since it uses less digits than its factorization.

22981970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208945.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 22981970 is about 4793.9513973339. The cubic root of 22981970 is about 284.3123670781.

The spelling of 22981970 in words is "twenty-two million, nine hundred eighty-one thousand, nine hundred seventy".