40140723344228 has 12 divisors (see below), whose sum is σ = 75649824764220. Its totient is φ = 18526487697312.

The previous prime is 40140723344221. The next prime is 40140723344251. The reversal of 40140723344228 is 82244332704104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7937731490404 + 32202991853824 = 2817398^2 + 5674768^2 .

It is a super-2 number, since 2×40140723344228² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40140723344221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385968493643 + ... + 385968493746.

It is an arithmetic number, because the mean of its divisors is an integer number (6304152063685).

Almost surely, 2^{40140723344228} is an apocalyptic number.

It is an amenable number.

40140723344228 is a deficient number, since it is larger than the sum of its proper divisors (35509101419992).

40140723344228 is a wasteful number, since it uses less digits than its factorization.

40140723344228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771936987406 (or 771936987404 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 44.

The spelling of 40140723344228 in words is "forty trillion, one hundred forty billion, seven hundred twenty-three million, three hundred forty-four thousand, two hundred twenty-eight".