31434112440 has 96 divisors (see below), whose sum is σ = 103560415920. Its totient is φ = 8267595264.

The previous prime is 31434112439. The next prime is 31434112481. The reversal of 31434112440 is 4421143413.

31434112440 is a `hidden beast` number, since 3 + 1 + 4 + 3 + 411 + 244 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 571782 + ... + 624341.

Almost surely, 2^31434112440 is an apocalyptic number.

31434112440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31434112440 is an abundant number, since it is smaller than the sum of its proper divisors (72126303480).

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

31434112440 is a wasteful number, since it uses less digits than its factorization.

31434112440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196213 (or 1196206 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 31434112440 its reverse (4421143413), we get a palindrome (35855255853).

The spelling of 31434112440 in words is "thirty-one billion, four hundred thirty-four million, one hundred twelve thousand, four hundred forty".