20232020 has 12 divisors (see below), whose sum is σ = 42487284. Its totient is φ = 8092800.

The previous prime is 20232013. The next prime is 20232029. The reversal of 20232020 is 2023202.

It can be written as a sum of positive squares in 2 ways, for example, as 7300804 + 12931216 = 2702^2 + 3596^2 .

It is a super-6 number, since 6×20232020⁶ (a number of 45 digits) contains 666666 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20231992 and 20232010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232029) 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, 505781 + ... + 505820.

It is an arithmetic number, because the mean of its divisors is an integer number (3540607).

Almost surely, 2^20232020 is an apocalyptic number.

20232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20232020 is an abundant number, since it is smaller than the sum of its proper divisors (22255264).

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

20232020 is a wasteful number, since it uses less digits than its factorization.

20232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011610 (or 1011608 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20232020 is about 4498.0017785679. The cubic root of 20232020 is about 272.4873938561.

Adding to 20232020 its reverse (2023202), we get a palindrome (22255222).

The spelling of 20232020 in words is "twenty million, two hundred thirty-two thousand, twenty".