22030506 has 24 divisors (see below), whose sum is σ = 47819460. Its totient is φ = 7330176.

The previous prime is 22030483. The next prime is 22030511. The reversal of 22030506 is 60503022.

It can be written as a sum of positive squares in 2 ways, for example, as 18844281 + 3186225 = 4341^2 + 1785^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17556 + ... + 18768.

Almost surely, 2^22030506 is an apocalyptic number.

22030506 is an abundant number, since it is smaller than the sum of its proper divisors (25788954).

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

22030506 is a wasteful number, since it uses less digits than its factorization.

22030506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 22030506 is about 4693.6665838127. Note that the first 3 decimals coincide. The cubic root of 22030506 is about 280.3333869031. Note that the first 4 decimals are identical.

Adding to 22030506 its reverse (60503022), we get a palindrome (82533528).

The spelling of 22030506 in words is "twenty-two million, thirty thousand, five hundred six".