31841448340 has 24 divisors (see below), whose sum is σ = 72010660680. Its totient is φ = 11756842368.

The previous prime is 31841448293. The next prime is 31841448383. The reversal of 31841448340 is 4384414813.

It can be written as a sum of positive squares in 4 ways, for example, as 978688656 + 30862759684 = 31284^2 + 175678^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31841448293 and 31841448302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61233295 + ... + 61233814.

It is an arithmetic number, because the mean of its divisors is an integer number (3000444195).

Almost surely, 2^31841448340 is an apocalyptic number.

It is an amenable number.

31841448340 is an abundant number, since it is smaller than the sum of its proper divisors (40169212340).

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

31841448340 is a wasteful number, since it uses less digits than its factorization.

31841448340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122467131 (or 122467129 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 31841448340 in words is "thirty-one billion, eight hundred forty-one million, four hundred forty-eight thousand, three hundred forty".