31996034424 has 128 divisors (see below), whose sum is σ = 94380940800. Its totient is φ = 10008645120.

The previous prime is 31996034401. The next prime is 31996034429. The reversal of 31996034424 is 42443069913.

31996034424 is a `hidden beast` number, since 3 + 19 + 9 + 603 + 4 + 4 + 24 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 31996034424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31996034429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261629 + ... + 1286739.

It is an arithmetic number, because the mean of its divisors is an integer number (737351100).

Almost surely, 2^31996034424 is an apocalyptic number.

31996034424 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31996034424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47190470400).

31996034424 is an abundant number, since it is smaller than the sum of its proper divisors (62384906376).

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

31996034424 is a wasteful number, since it uses less digits than its factorization.

31996034424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25490 (or 25480 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 45.

The spelling of 31996034424 in words is "thirty-one billion, nine hundred ninety-six million, thirty-four thousand, four hundred twenty-four".