40393286736 has 120 divisors (see below), whose sum is σ = 114785903232. Its totient is φ = 12231014400.

The previous prime is 40393286699. The next prime is 40393286741. The reversal of 40393286736 is 63768239304.

It is a happy number.

It is a super-2 number, since 2×40393286736² (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 23 ways as a sum of consecutive naturals, for example, 13281376 + ... + 13284416.

Almost surely, 2^40393286736 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 40393286736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57392951616).

40393286736 is an abundant number, since it is smaller than the sum of its proper divisors (74392616496).

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

40393286736 is a wasteful number, since it uses less digits than its factorization.

40393286736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5361 (or 5344 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 40393286736 in words is "forty billion, three hundred ninety-three million, two hundred eighty-six thousand, seven hundred thirty-six".