40136115444 has 24 divisors (see below), whose sum is σ = 93663621408. Its totient is φ = 13376892960.

The previous prime is 40136115407. The next prime is 40136115457. The reversal of 40136115444 is 44451163104.

It is a super-2 number, since 2×40136115444² (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 7 ways as a sum of consecutive naturals, for example, 132687 + ... + 312854.

It is an arithmetic number, because the mean of its divisors is an integer number (3902650892).

Almost surely, 2^40136115444 is an apocalyptic number.

It is an amenable number.

40136115444 is an abundant number, since it is smaller than the sum of its proper divisors (53527505964).

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

40136115444 is a wasteful number, since it uses less digits than its factorization.

40136115444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453055 (or 453053 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 40136115444 its reverse (44451163104), we get a palindrome (84587278548).

The spelling of 40136115444 in words is "forty billion, one hundred thirty-six million, one hundred fifteen thousand, four hundred forty-four".