22047530 has 16 divisors (see below), whose sum is σ = 39954600. Its totient is φ = 8759232.

The previous prime is 22047517. The next prime is 22047563. The reversal of 22047530 is 3574022.

It can be written as a sum of positive squares in 4 ways, for example, as 11826721 + 10220809 = 3439^2 + 3197^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22047496 and 22047505.

It is an unprimeable number.

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, 5909 + ... + 8888.

Almost surely, 2^22047530 is an apocalyptic number.

22047530 is a deficient number, since it is larger than the sum of its proper divisors (17907070).

22047530 is a wasteful number, since it uses less digits than its factorization.

22047530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14953.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 22047530 is about 4695.4797411979. The cubic root of 22047530 is about 280.4055772078.

The spelling of 22047530 in words is "twenty-two million, forty-seven thousand, five hundred thirty".