40344523312 has 10 divisors (see below), whose sum is σ = 78167513948. Its totient is φ = 20172261648.

The previous prime is 40344523249. The next prime is 40344523321. The reversal of 40344523312 is 21332544304.

It is a happy number.

It is a super-2 number, since 2×40344523312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260766338 + ... + 1260766369.

Almost surely, 2^40344523312 is an apocalyptic number.

It is an amenable number.

40344523312 is a deficient number, since it is larger than the sum of its proper divisors (37822990636).

40344523312 is a wasteful number, since it uses less digits than its factorization.

40344523312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521532715 (or 2521532709 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 31.

The spelling of 40344523312 in words is "forty billion, three hundred forty-four million, five hundred twenty-three thousand, three hundred twelve".