22397330 has 16 divisors (see below), whose sum is σ = 42687000. Its totient is φ = 8431872.

The previous prime is 22397329. The next prime is 22397351. The reversal of 22397330 is 3379322.

It can be written as a sum of positive squares in 4 ways, for example, as 18567481 + 3829849 = 4309^2 + 1957^2 .

It is a super-2 number, since 2×22397330² = 1003280782257800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22397293 and 22397302.

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, 65705 + ... + 66044.

Almost surely, 2^22397330 is an apocalyptic number.

22397330 is a deficient number, since it is larger than the sum of its proper divisors (20289670).

22397330 is a wasteful number, since it uses less digits than its factorization.

22397330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131773.

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 22397330 is about 4732.5817478412. The cubic root of 22397330 is about 281.8807486664.

The spelling of 22397330 in words is "twenty-two million, three hundred ninety-seven thousand, three hundred thirty".