40161244732 has 48 divisors (see below), whose sum is σ = 83184192000. Its totient is φ = 16600054464.

The previous prime is 40161244723. The next prime is 40161244751. The reversal of 40161244732 is 23744216104.

It is a super-2 number, since 2×40161244732² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719319 + ... + 773137.

It is an arithmetic number, because the mean of its divisors is an integer number (1733004000).

Almost surely, 2^40161244732 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 40161244732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41592096000).

40161244732 is an abundant number, since it is smaller than the sum of its proper divisors (43022947268).

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

40161244732 is a wasteful number, since it uses less digits than its factorization.

40161244732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54778 (or 54776 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 40161244732 in words is "forty billion, one hundred sixty-one million, two hundred forty-four thousand, seven hundred thirty-two".