22725330 has 32 divisors (see below), whose sum is σ = 57412800. Its totient is φ = 5740992.

The previous prime is 22725281. The next prime is 22725341. The reversal of 22725330 is 3352722.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22725330.

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, 19365 + ... + 20504.

It is an arithmetic number, because the mean of its divisors is an integer number (1794150).

Almost surely, 2^22725330 is an apocalyptic number.

22725330 is an abundant number, since it is smaller than the sum of its proper divisors (34687470).

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

22725330 is a wasteful number, since it uses less digits than its factorization.

22725330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39898.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 22725330 is about 4767.1091869182. The cubic root of 22725330 is about 283.2500962720.

The spelling of 22725330 in words is "twenty-two million, seven hundred twenty-five thousand, three hundred thirty".