20222530 has 8 divisors (see below), whose sum is σ = 36400572. Its totient is φ = 8089008.

The previous prime is 20222473. The next prime is 20222557. The reversal of 20222530 is 3522202.

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 1912689 = 4279^2 + 1383^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1011117 + ... + 1011136.

Almost surely, 2^20222530 is an apocalyptic number.

20222530 is a deficient number, since it is larger than the sum of its proper divisors (16178042).

20222530 is a wasteful number, since it uses less digits than its factorization.

20222530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022260.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 20222530 is about 4496.9467419573. The cubic root of 20222530 is about 272.4447830213. Note that the first 3 decimals are identical.

Adding to 20222530 its reverse (3522202), we get a palindrome (23744732).

The spelling of 20222530 in words is "twenty million, two hundred twenty-two thousand, five hundred thirty".