22909830 has 32 divisors (see below), whose sum is σ = 55535328. Its totient is φ = 6048000.

The previous prime is 22909811. The next prime is 22909849. The reversal of 22909830 is 3890922.

It is an interprime number because it is at equal distance from previous prime (22909811) and next prime (22909849).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22909791 and 22909800.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751 + ... + 6810.

It is an arithmetic number, because the mean of its divisors is an integer number (1735479).

Almost surely, 2^22909830 is an apocalyptic number.

22909830 is an abundant number, since it is smaller than the sum of its proper divisors (32625498).

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

22909830 is a wasteful number, since it uses less digits than its factorization.

22909830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7672.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 22909830 is about 4786.4214189726. The cubic root of 22909830 is about 284.0145714272.

The spelling of 22909830 in words is "twenty-two million, nine hundred nine thousand, eight hundred thirty".