40021034312 has 32 divisors (see below), whose sum is σ = 88077184320. Its totient is φ = 16688306880.

The previous prime is 40021034299. The next prime is 40021034363. The reversal of 40021034312 is 21343012004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9655514 + ... + 9659657.

It is an arithmetic number, because the mean of its divisors is an integer number (2752412010).

Almost surely, 2^40021034312 is an apocalyptic number.

It is an amenable number.

40021034312 is an abundant number, since it is smaller than the sum of its proper divisors (48056150008).

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

40021034312 is a wasteful number, since it uses less digits than its factorization.

40021034312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19315221 (or 19315217 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40021034312 its reverse (21343012004), we get a palindrome (61364046316).

The spelling of 40021034312 in words is "forty billion, twenty-one million, thirty-four thousand, three hundred twelve".