22020300 has 108 divisors (see below), whose sum is σ = 70750680. Its totient is φ = 5725440.

The previous prime is 22020293. The next prime is 22020311. The reversal of 22020300 is 302022.

It is a super-2 number, since 2×22020300² = 969787224180000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38416 + ... + 38984.

Almost surely, 2^22020300 is an apocalyptic number.

22020300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35375340).

22020300 is an abundant number, since it is smaller than the sum of its proper divisors (48730380).

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

22020300 is a wasteful number, since it uses less digits than its factorization.

22020300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 622 counting only the distinct ones).

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

The square root of 22020300 is about 4692.5792481321. The cubic root of 22020300 is about 280.2900905080.

Adding to 22020300 its reverse (302022), we get a palindrome (22322322).

The spelling of 22020300 in words is "twenty-two million, twenty thousand, three hundred".