39981807348 has 240 divisors, whose sum is σ = 113877456000. Its totient is φ = 10903382784.

The previous prime is 39981807347. The next prime is 39981807401. The reversal of 39981807348 is 84370818993.

It is a junction number, because it is equal to n+sod(n) for n = 39981807291 and 39981807300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39981807347) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 91074513 + ... + 91074951.

It is an arithmetic number, because the mean of its divisors is an integer number (474489400).

Almost surely, 2^39981807348 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39981807348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56938728000).

39981807348 is an abundant number, since it is smaller than the sum of its proper divisors (73895648652).

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

39981807348 is a wasteful number, since it uses less digits than its factorization.

39981807348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 589 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 39981807348 in words is "thirty-nine billion, nine hundred eighty-one million, eight hundred seven thousand, three hundred forty-eight".