39734881020 has 96 divisors (see below), whose sum is σ = 124056925440. Its totient is φ = 10558486080.

The previous prime is 39734881007. The next prime is 39734881063. The reversal of 39734881020 is 2018843793.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22815 + ... + 282825.

It is an arithmetic number, because the mean of its divisors is an integer number (1292259640).

Almost surely, 2^39734881020 is an apocalyptic number.

39734881020 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 39734881020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62028462720).

39734881020 is an abundant number, since it is smaller than the sum of its proper divisors (84322044420).

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

39734881020 is a wasteful number, since it uses less digits than its factorization.

39734881020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260312 (or 260304 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 39734881020 in words is "thirty-nine billion, seven hundred thirty-four million, eight hundred eighty-one thousand, twenty".