40243232020 has 48 divisors (see below), whose sum is σ = 88207701120. Its totient is φ = 15393476736.

The previous prime is 40243232009. The next prime is 40243232021. The reversal of 40243232020 is 2023234204.

It is a junction number, because it is equal to n+sod(n) for n = 40243231982 and 40243232000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40243232021) 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, 2318494 + ... + 2335786.

It is an arithmetic number, because the mean of its divisors is an integer number (1837660440).

Almost surely, 2^40243232020 is an apocalyptic number.

It is an amenable number.

40243232020 is an abundant number, since it is smaller than the sum of its proper divisors (47964469100).

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

40243232020 is a wasteful number, since it uses less digits than its factorization.

40243232020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22384 (or 22382 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 40243232020 its reverse (2023234204), we get a palindrome (42266466224).

The spelling of 40243232020 in words is "forty billion, two hundred forty-three million, two hundred thirty-two thousand, twenty".