40324012032 has 144 divisors (see below), whose sum is σ = 108907704360. Its totient is φ = 13267107840.

The previous prime is 40324012021. The next prime is 40324012033. The reversal of 40324012032 is 23021042304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40324012033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167319432 + ... + 167319672.

Almost surely, 2^40324012032 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 40324012032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54453852180).

40324012032 is an abundant number, since it is smaller than the sum of its proper divisors (68583692328).

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

40324012032 is an equidigital number, since it uses as much as digits as its factorization.

40324012032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40324012032 its reverse (23021042304), we get a palindrome (63345054336).

The spelling of 40324012032 in words is "forty billion, three hundred twenty-four million, twelve thousand, thirty-two".