22500730 has 32 divisors (see below), whose sum is σ = 47784960. Its totient is φ = 7464960.

The previous prime is 22500727. The next prime is 22500757. The reversal of 22500730 is 3700522.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22500698 and 22500707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3015 + ... + 7354.

It is an arithmetic number, because the mean of its divisors is an integer number (1493280).

Almost surely, 2^22500730 is an apocalyptic number.

22500730 is an abundant number, since it is smaller than the sum of its proper divisors (25284230).

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

22500730 is a wasteful number, since it uses less digits than its factorization.

22500730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 22500730 is about 4743.4934383848. The cubic root of 22500730 is about 282.3138617704.

The spelling of 22500730 in words is "twenty-two million, five hundred thousand, seven hundred thirty".