40004430131 has 16 divisors (see below), whose sum is σ = 40750426080. Its totient is φ = 39265839360.

The previous prime is 40004430119. The next prime is 40004430133. The reversal of 40004430131 is 13103440004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40004430131 - 2¹⁰ = 40004429107 is a prime.

It is a super-2 number, since 2×40004430131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40004430133) 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, 10517276 + ... + 10521078.

It is an arithmetic number, because the mean of its divisors is an integer number (2546901630).

Almost surely, 2^40004430131 is an apocalyptic number.

40004430131 is a deficient number, since it is larger than the sum of its proper divisors (745995949).

40004430131 is a wasteful number, since it uses less digits than its factorization.

40004430131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 40004430131 its reverse (13103440004), we get a palindrome (53107870135).

The spelling of 40004430131 in words is "forty billion, four million, four hundred thirty thousand, one hundred thirty-one".