22812730 has 16 divisors (see below), whose sum is σ = 43224480. Its totient is φ = 8644752.

The previous prime is 22812709. The next prime is 22812731. The reversal of 22812730 is 3721822.

It is a junction number, because it is equal to n+sod(n) for n = 22812695 and 22812704.

It is not an unprimeable number, because it can be changed into a prime (22812731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59844 + ... + 60223.

It is an arithmetic number, because the mean of its divisors is an integer number (2701530).

Almost surely, 2^22812730 is an apocalyptic number.

22812730 is a deficient number, since it is larger than the sum of its proper divisors (20411750).

22812730 is a wasteful number, since it uses less digits than its factorization.

22812730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120093.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 22812730 is about 4776.2673710755. The cubic root of 22812730 is about 283.6127516492.

The spelling of 22812730 in words is "twenty-two million, eight hundred twelve thousand, seven hundred thirty".