40159772324 has 48 divisors (see below), whose sum is σ = 82625354112. Its totient is φ = 16718752512.

The previous prime is 40159772321. The next prime is 40159772347. The reversal of 40159772324 is 42327795104.

It is a super-2 number, since 2×40159772324² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40159772321) 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, 607799 + ... + 670625.

It is an arithmetic number, because the mean of its divisors is an integer number (1721361544).

Almost surely, 2^40159772324 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 40159772324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41312677056).

40159772324 is an abundant number, since it is smaller than the sum of its proper divisors (42465581788).

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

40159772324 is a wasteful number, since it uses less digits than its factorization.

40159772324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63492 (or 63490 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 40159772324 in words is "forty billion, one hundred fifty-nine million, seven hundred seventy-two thousand, three hundred twenty-four".