40232043240 has 512 divisors, whose sum is σ = 136055808000. Its totient is φ = 9477513216.

The previous prime is 40232043239. The next prime is 40232043263. The reversal of 40232043240 is 4234023204.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40232043240.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 289439091 + ... + 289439229.

It is an arithmetic number, because the mean of its divisors is an integer number (265734000).

Almost surely, 2^40232043240 is an apocalyptic number.

40232043240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40232043240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68027904000).

40232043240 is an abundant number, since it is smaller than the sum of its proper divisors (95823764760).

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

40232043240 is a wasteful number, since it uses less digits than its factorization.

40232043240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 40232043240 its reverse (4234023204), we get a palindrome (44466066444).

The spelling of 40232043240 in words is "forty billion, two hundred thirty-two million, forty-three thousand, two hundred forty".