22452730 has 8 divisors (see below), whose sum is σ = 40414932. Its totient is φ = 8981088.

The previous prime is 22452719. The next prime is 22452739. The reversal of 22452730 is 3725422.

It can be written as a sum of positive squares in 2 ways, for example, as 19421649 + 3031081 = 4407^2 + 1741^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22452695 and 22452704.

It is not an unprimeable number, because it can be changed into a prime (22452739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122627 + ... + 1122646.

Almost surely, 2^22452730 is an apocalyptic number.

22452730 is a deficient number, since it is larger than the sum of its proper divisors (17962202).

22452730 is a wasteful number, since it uses less digits than its factorization.

22452730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245280.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 22452730 is about 4738.4311749776. The cubic root of 22452730 is about 282.1129688393.

The spelling of 22452730 in words is "twenty-two million, four hundred fifty-two thousand, seven hundred thirty".