22030020 has 36 divisors (see below), whose sum is σ = 66824940. Its totient is φ = 5874624.

The previous prime is 22030007. The next prime is 22030031. The reversal of 22030020 is 2003022.

It can be written as a sum of positive squares in 2 ways, for example, as 14379264 + 7650756 = 3792^2 + 2766^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 22029984 and 22030011.

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, 61015 + ... + 61374.

Almost surely, 2^22030020 is an apocalyptic number.

22030020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22030020 is an abundant number, since it is smaller than the sum of its proper divisors (44794920).

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

22030020 is a wasteful number, since it uses less digits than its factorization.

22030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122404 (or 122399 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 22030020 is about 4693.6148116351. The cubic root of 22030020 is about 280.3313254733.

Adding to 22030020 its reverse (2003022), we get a palindrome (24033042).

The spelling of 22030020 in words is "twenty-two million, thirty thousand, twenty".