39020347728 has 400 divisors, whose sum is σ = 125421436800. Its totient is φ = 11661511680.

The previous prime is 39020347687. The next prime is 39020347753. The reversal of 39020347728 is 82774302093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 37846573 + ... + 37847603.

It is an arithmetic number, because the mean of its divisors is an integer number (313553592).

Almost surely, 2^39020347728 is an apocalyptic number.

39020347728 is a gapful number since it is divisible by the number (38) 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 39020347728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62710718400).

39020347728 is an abundant number, since it is smaller than the sum of its proper divisors (86401089072).

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

39020347728 is a wasteful number, since it uses less digits than its factorization.

39020347728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1137 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 39020347728 in words is "thirty-nine billion, twenty million, three hundred forty-seven thousand, seven hundred twenty-eight".