40434312312 has 24 divisors (see below), whose sum is σ = 109509596040. Its totient is φ = 13478104080.

The previous prime is 40434312263. The next prime is 40434312313. The reversal of 40434312312 is 21321343404.

40434312312 is a `hidden beast` number, since 4 + 0 + 4 + 34 + 312 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×40434312312² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40434312313) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280793764 + ... + 280793907.

It is an arithmetic number, because the mean of its divisors is an integer number (4562899835).

Almost surely, 2^40434312312 is an apocalyptic number.

It is an amenable number.

40434312312 is an abundant number, since it is smaller than the sum of its proper divisors (69075283728).

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

40434312312 is a wasteful number, since it uses less digits than its factorization.

40434312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561587683 (or 561587676 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 40434312312 its reverse (21321343404), we get a palindrome (61755655716).

The spelling of 40434312312 in words is "forty billion, four hundred thirty-four million, three hundred twelve thousand, three hundred twelve".