40321877292 has 72 divisors (see below), whose sum is σ = 107845461360. Its totient is φ = 12667207680.

The previous prime is 40321877213. The next prime is 40321877339. The reversal of 40321877292 is 29277812304.

40321877292 is a `hidden beast` number, since 403 + 218 + 7 + 7 + 29 + 2 = 666.

It is a super-2 number, since 2×40321877292² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20709 + ... + 284732.

It is an arithmetic number, because the mean of its divisors is an integer number (1497853630).

Almost surely, 2^40321877292 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 40321877292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53922730680).

40321877292 is an abundant number, since it is smaller than the sum of its proper divisors (67523584068).

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

40321877292 is a wasteful number, since it uses less digits than its factorization.

40321877292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305663 (or 305658 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 40321877292 in words is "forty billion, three hundred twenty-one million, eight hundred seventy-seven thousand, two hundred ninety-two".