22097970 has 24 divisors (see below), whose sum is σ = 57454956. Its totient is φ = 5892768.

The previous prime is 22097927. The next prime is 22097987. The reversal of 22097970 is 7979022.

It can be written as a sum of positive squares in 2 ways, for example, as 21650409 + 447561 = 4653^2 + 669^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122677 + ... + 122856.

Almost surely, 2^22097970 is an apocalyptic number.

22097970 is an abundant number, since it is smaller than the sum of its proper divisors (35356986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22097970 is a wasteful number, since it uses less digits than its factorization.

22097970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245546 (or 245543 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 22097970 is about 4700.8477958768. The cubic root of 22097970 is about 280.6192502001.

The spelling of 22097970 in words is "twenty-two million, ninety-seven thousand, nine hundred seventy".