40400342430015 has 16 divisors (see below), whose sum is σ = 65550978141696. Its totient is φ = 21243372544800.

The previous prime is 40400342430001. The next prime is 40400342430017. The reversal of 40400342430015 is 51003424300404.

It is not a de Polignac number, because 40400342430015 - 2¹⁰ = 40400342428991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400342430017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18967295851 + ... + 18967297980.

It is an arithmetic number, because the mean of its divisors is an integer number (4096936133856).

Almost surely, 2^{40400342430015} is an apocalyptic number.

40400342430015 is a deficient number, since it is larger than the sum of its proper divisors (25150635711681).

40400342430015 is a wasteful number, since it uses less digits than its factorization.

40400342430015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37934593910.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 40400342430015 its reverse (51003424300404), we get a palindrome (91403766730419).

The spelling of 40400342430015 in words is "forty trillion, four hundred billion, three hundred forty-two million, four hundred thirty thousand, fifteen".