40400342431215 has 32 divisors (see below), whose sum is σ = 69619631639040. Its totient is φ = 19887475376256.

The previous prime is 40400342431159. The next prime is 40400342431243. The reversal of 40400342431215 is 51213424300404.

It is not a de Polignac number, because 40400342431215 - 2²⁵ = 40400308876783 is a prime.

It is a super-2 number, since 2×40400342431215² (a number of 28 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 in 31 ways as a sum of consecutive naturals, for example, 7998645 + ... + 12032414.

It is an arithmetic number, because the mean of its divisors is an integer number (2175613488720).

Almost surely, 2^{40400342431215} is an apocalyptic number.

40400342431215 is a deficient number, since it is larger than the sum of its proper divisors (29219289207825).

40400342431215 is a wasteful number, since it uses less digits than its factorization.

40400342431215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20041423.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 40400342431215 its reverse (51213424300404), we get a palindrome (91613766731619).

The spelling of 40400342431215 in words is "forty trillion, four hundred billion, three hundred forty-two million, four hundred thirty-one thousand, two hundred fifteen".