43232020 has 48 divisors (see below), whose sum is σ = 103532688. Its totient is φ = 15022080.

The previous prime is 43232009. The next prime is 43232023. The reversal of 43232020 is 2023234.

It can be written as a sum of positive squares in 8 ways, for example, as 1008016 + 42224004 = 1004^2 + 6498^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43231985 and 43232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43232023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471 + ... + 9310.

It is an arithmetic number, because the mean of its divisors is an integer number (2156931).

Almost surely, 2^43232020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43232020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51766344).

43232020 is an abundant number, since it is smaller than the sum of its proper divisors (60300668).

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

43232020 is a wasteful number, since it uses less digits than its factorization.

43232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9820 (or 9818 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 43232020 is about 6575.1060827944. The cubic root of 43232020 is about 350.9687988867.

Adding to 43232020 its reverse (2023234), we get a palindrome (45255254).

The spelling of 43232020 in words is "forty-three million, two hundred thirty-two thousand, twenty".