22200690 has 16 divisors (see below), whose sum is σ = 53281728. Its totient is φ = 5920176.

The previous prime is 22200677. The next prime is 22200733. The reversal of 22200690 is 9600222.

It is a happy number.

It is a super-2 number, since 2×22200690² = 985741272952200, which contains 22 as substring.

It is a Curzon number.

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, 369982 + ... + 370041.

It is an arithmetic number, because the mean of its divisors is an integer number (3330108).

Almost surely, 2^22200690 is an apocalyptic number.

22200690 is an abundant number, since it is smaller than the sum of its proper divisors (31081038).

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

22200690 is a wasteful number, since it uses less digits than its factorization.

22200690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740033.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 22200690 is about 4711.7608173590. The cubic root of 22200690 is about 281.0533875251.

The spelling of 22200690 in words is "twenty-two million, two hundred thousand, six hundred ninety".