40143400312 has 8 divisors (see below), whose sum is σ = 75268875600. Its totient is φ = 20071700152.

The previous prime is 40143400303. The next prime is 40143400321. The reversal of 40143400312 is 21300434104.

It is an interprime number because it is at equal distance from previous prime (40143400303) and next prime (40143400321).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×40143400312² (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 as a sum of consecutive naturals, namely, 2508962512 + ... + 2508962527.

It is an arithmetic number, because the mean of its divisors is an integer number (9408609450).

Almost surely, 2^40143400312 is an apocalyptic number.

It is an amenable number.

40143400312 is a deficient number, since it is larger than the sum of its proper divisors (35125475288).

40143400312 is a wasteful number, since it uses less digits than its factorization.

40143400312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017925045 (or 5017925041 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40143400312 its reverse (21300434104), we get a palindrome (61443834416).

The spelling of 40143400312 in words is "forty billion, one hundred forty-three million, four hundred thousand, three hundred twelve".