31404424413244 has 48 divisors (see below), whose sum is σ = 58543469107200. Its totient is φ = 14689076371200.

The previous prime is 31404424413239. The next prime is 31404424413247. The reversal of 31404424413244 is 44231442440413.

It is a junction number, because it is equal to n+sod(n) for n = 31404424413197 and 31404424413206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31404424413247) 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, 11885469 + ... + 14285419.

It is an arithmetic number, because the mean of its divisors is an integer number (1219655606400).

Almost surely, 2^{31404424413244} is an apocalyptic number.

31404424413244 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31404424413244 is a deficient number, since it is larger than the sum of its proper divisors (27139044693956).

31404424413244 is a wasteful number, since it uses less digits than its factorization.

31404424413244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401138 (or 2401136 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 40.

Adding to 31404424413244 its reverse (44231442440413), we get a palindrome (75635866853657).

The spelling of 31404424413244 in words is "thirty-one trillion, four hundred four billion, four hundred twenty-four million, four hundred thirteen thousand, two hundred forty-four".