40843231520 has 96 divisors (see below), whose sum is σ = 118759592448. Its totient is φ = 12926204928.

The previous prime is 40843231469. The next prime is 40843231523. The reversal of 40843231520 is 2513234804.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (40843231523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1388024 + ... + 1417143.

It is an arithmetic number, because the mean of its divisors is an integer number (1237079088).

Almost surely, 2^40843231520 is an apocalyptic number.

40843231520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40843231520 is an abundant number, since it is smaller than the sum of its proper divisors (77916360928).

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

40843231520 is a wasteful number, since it uses less digits than its factorization.

40843231520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805202 (or 2805194 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 40843231520 in words is "forty billion, eight hundred forty-three million, two hundred thirty-one thousand, five hundred twenty".