39993981120 has 224 divisors, whose sum is σ = 141221399040. Its totient is φ = 10655124480.

The previous prime is 39993981119. The next prime is 39993981121. The reversal of 39993981120 is 2118939993.

39993981120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (39993981119) and next prime (39993981121).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (39993981121) 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, 17304765 + ... + 17307075.

Almost surely, 2^39993981120 is an apocalyptic number.

39993981120 is a gapful number since it is divisible by the number (30) 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 39993981120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70610699520).

39993981120 is an abundant number, since it is smaller than the sum of its proper divisors (101227417920).

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

39993981120 is a wasteful number, since it uses less digits than its factorization.

39993981120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340 (or 4324 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 54.

The spelling of 39993981120 in words is "thirty-nine billion, nine hundred ninety-three million, nine hundred eighty-one thousand, one hundred twenty".