31424044402 has 8 divisors (see below), whose sum is σ = 48761448300. Its totient is φ = 15170228304.

The previous prime is 31424044391. The next prime is 31424044403. The reversal of 31424044402 is 20444042413.

It can be written as a sum of positive squares in 2 ways, for example, as 29732449761 + 1691594641 = 172431^2 + 41129^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31424044403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270896877 + ... + 270896992.

Almost surely, 2^31424044402 is an apocalyptic number.

31424044402 is a deficient number, since it is larger than the sum of its proper divisors (17337403898).

31424044402 is a wasteful number, since it uses less digits than its factorization.

31424044402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541793900.

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

Adding to 31424044402 its reverse (20444042413), we get a palindrome (51868086815).

The spelling of 31424044402 in words is "thirty-one billion, four hundred twenty-four million, forty-four thousand, four hundred two".