22880020 has 12 divisors (see below), whose sum is σ = 48048084. Its totient is φ = 9152000.

The previous prime is 22880017. The next prime is 22880021. The reversal of 22880020 is 2008822.

It can be written as a sum of positive squares in 2 ways, for example, as 14961424 + 7918596 = 3868^2 + 2814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22879973 and 22880000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22880021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571981 + ... + 572020.

It is an arithmetic number, because the mean of its divisors is an integer number (4004007).

Almost surely, 2^22880020 is an apocalyptic number.

22880020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22880020 is an abundant number, since it is smaller than the sum of its proper divisors (25168064).

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

22880020 is a wasteful number, since it uses less digits than its factorization.

22880020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144010 (or 1144008 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 22880020 is about 4783.3063878451. The cubic root of 22880020 is about 283.8913324916.

Adding to 22880020 its reverse (2008822), we get a palindrome (24888842).

The spelling of 22880020 in words is "twenty-two million, eight hundred eighty thousand, twenty".