40444034231 has 4 divisors (see below), whose sum is σ = 40601404272. Its totient is φ = 40286664192.

The previous prime is 40444034221. The next prime is 40444034251. The reversal of 40444034231 is 13243044404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40444034231 - 2¹⁰ = 40444033207 is a prime.

It is a super-2 number, since 2×40444034231² (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 = 40444034194 and 40444034203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444034221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78684635 + ... + 78685148.

It is an arithmetic number, because the mean of its divisors is an integer number (10150351068).

Almost surely, 2^40444034231 is an apocalyptic number.

40444034231 is a deficient number, since it is larger than the sum of its proper divisors (157370041).

40444034231 is a wasteful number, since it uses less digits than its factorization.

40444034231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157370040.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40444034231 its reverse (13243044404), we get a palindrome (53687078635).

The spelling of 40444034231 in words is "forty billion, four hundred forty-four million, thirty-four thousand, two hundred thirty-one".