40012133344 has 48 divisors (see below), whose sum is σ = 81532498320. Its totient is φ = 19306183680.

The previous prime is 40012133323. The next prime is 40012133353. The reversal of 40012133344 is 44333121004.

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, 1967452 + ... + 1987684.

It is an arithmetic number, because the mean of its divisors is an integer number (1698593715).

Almost surely, 2^40012133344 is an apocalyptic number.

It is an amenable number.

40012133344 is an abundant number, since it is smaller than the sum of its proper divisors (41520364976).

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

40012133344 is a wasteful number, since it uses less digits than its factorization.

40012133344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22403 (or 22395 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 40012133344 its reverse (44333121004), we get a palindrome (84345254348).

The spelling of 40012133344 in words is "forty billion, twelve million, one hundred thirty-three thousand, three hundred forty-four".