22597970 has 16 divisors (see below), whose sum is σ = 41669208. Its totient is φ = 8818560.

The previous prime is 22597969. The next prime is 22597987. The reversal of 22597970 is 7979522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18601969 + 3996001 = 4313^2 + 1999^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27149 + ... + 27968.

Almost surely, 2^22597970 is an apocalyptic number.

22597970 is a deficient number, since it is larger than the sum of its proper divisors (19071238).

22597970 is a wasteful number, since it uses less digits than its factorization.

22597970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55165.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 22597970 is about 4753.7322179525. The cubic root of 22597970 is about 282.7199633864.

The spelling of 22597970 in words is "twenty-two million, five hundred ninety-seven thousand, nine hundred seventy".