40015304231 has 16 divisors (see below), whose sum is σ = 46196877120. Its totient is φ = 33950188800.

The previous prime is 40015304227. The next prime is 40015304243. The reversal of 40015304231 is 13240351004.

It is a cyclic number.

It is not a de Polignac number, because 40015304231 - 2² = 40015304227 is a prime.

It is a super-2 number, since 2×40015304231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40015304197 and 40015304206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40015304201) 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, 4942835 + ... + 4950923.

It is an arithmetic number, because the mean of its divisors is an integer number (2887304820).

Almost surely, 2^40015304231 is an apocalyptic number.

40015304231 is a deficient number, since it is larger than the sum of its proper divisors (6181572889).

40015304231 is a wasteful number, since it uses less digits than its factorization.

40015304231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15194.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 40015304231 its reverse (13240351004), we get a palindrome (53255655235).

The spelling of 40015304231 in words is "forty billion, fifteen million, three hundred four thousand, two hundred thirty-one".