22430730 has 48 divisors (see below), whose sum is σ = 62627040. Its totient is φ = 5126688.

The previous prime is 22430719. The next prime is 22430743. The reversal of 22430730 is 3703422.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22430697 and 22430706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6160 + ... + 9099.

It is an arithmetic number, because the mean of its divisors is an integer number (1304730).

Almost surely, 2^22430730 is an apocalyptic number.

22430730 is an abundant number, since it is smaller than the sum of its proper divisors (40196310).

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

22430730 is a wasteful number, since it uses less digits than its factorization.

22430730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15283 (or 15276 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 22430730 is about 4736.1091625933. The cubic root of 22430730 is about 282.0207972188.

The spelling of 22430730 in words is "twenty-two million, four hundred thirty thousand, seven hundred thirty".