40444423031 has 8 divisors (see below), whose sum is σ = 41240672928. Its totient is φ = 39654468000.

The previous prime is 40444423027. The next prime is 40444423039. The reversal of 40444423031 is 13032444404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40444423031 - 2² = 40444423027 is a prime.

It is a super-2 number, since 2×40444423031² (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 = 40444422985 and 40444423003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40444423039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1560740 + ... + 1586441.

It is an arithmetic number, because the mean of its divisors is an integer number (5155084116).

Almost surely, 2^40444423031 is an apocalyptic number.

40444423031 is a deficient number, since it is larger than the sum of its proper divisors (796249897).

40444423031 is a wasteful number, since it uses less digits than its factorization.

40444423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147433.

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

Adding to 40444423031 its reverse (13032444404), we get a palindrome (53476867435).

The spelling of 40444423031 in words is "forty billion, four hundred forty-four million, four hundred twenty-three thousand, thirty-one".