40323232320 has 112 divisors (see below), whose sum is σ = 146315753088. Its totient is φ = 9216737280.

The previous prime is 40323232307. The next prime is 40323232321. The reversal of 40323232320 is 2323232304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is not an unprimeable number, because it can be changed into a prime (40323232321) 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, 2993521 + ... + 3006960.

Almost surely, 2^40323232320 is an apocalyptic number.

40323232320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40323232320 is an abundant number, since it is smaller than the sum of its proper divisors (105992520768).

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

40323232320 is a wasteful number, since it uses less digits than its factorization.

40323232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000508 (or 6000498 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 24.

Adding to 40323232320 its reverse (2323232304), we get a palindrome (42646464624).

The spelling of 40323232320 in words is "forty billion, three hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty".