22662020 has 24 divisors (see below), whose sum is σ = 50390424. Its totient is φ = 8531456.

The previous prime is 22662001. The next prime is 22662043. The reversal of 22662020 is 2026622.

It can be written as a sum of positive squares in 4 ways, for example, as 232324 + 22429696 = 482^2 + 4736^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 22661983 and 22662001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32987 + ... + 33666.

It is an arithmetic number, because the mean of its divisors is an integer number (2099601).

Almost surely, 2^22662020 is an apocalyptic number.

22662020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22662020 is an abundant number, since it is smaller than the sum of its proper divisors (27728404).

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

22662020 is a wasteful number, since it uses less digits than its factorization.

22662020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66679 (or 66677 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22662020 is about 4760.4642630735. The cubic root of 22662020 is about 282.9868182167.

Adding to 22662020 its reverse (2026622), we get a palindrome (24688642).

The spelling of 22662020 in words is "twenty-two million, six hundred sixty-two thousand, twenty".