31044404224 has 44 divisors (see below), whose sum is σ = 63735825964. Its totient is φ = 15102664704.

The previous prime is 31044404221. The next prime is 31044404243. The reversal of 31044404224 is 42240444013.

It can be written as a sum of positive squares in 2 ways, for example, as 20552089600 + 10492314624 = 143360^2 + 102432^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31044404192 and 31044404201.

It is not an unprimeable number, because it can be changed into a prime (31044404221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371799 + ... + 447574.

Almost surely, 2^31044404224 is an apocalyptic number.

It is an amenable number.

31044404224 is an abundant number, since it is smaller than the sum of its proper divisors (32691421740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31044404224 is an equidigital number, since it uses as much as digits as its factorization.

31044404224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819430 (or 819412 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 31044404224 its reverse (42240444013), we get a palindrome (73284848237).

The spelling of 31044404224 in words is "thirty-one billion, forty-four million, four hundred four thousand, two hundred twenty-four".