39839013390 has 128 divisors (see below), whose sum is σ = 105153085440. Its totient is φ = 9579830400.

The previous prime is 39839013359. The next prime is 39839013457. The reversal of 39839013390 is 9331093893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25553431 + ... + 25554989.

It is an arithmetic number, because the mean of its divisors is an integer number (821508480).

Almost surely, 2^39839013390 is an apocalyptic number.

39839013390 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 39839013390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52576542720).

39839013390 is an abundant number, since it is smaller than the sum of its proper divisors (65314072050).

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

39839013390 is a wasteful number, since it uses less digits than its factorization.

39839013390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 472392, while the sum is 48.

The spelling of 39839013390 in words is "thirty-nine billion, eight hundred thirty-nine million, thirteen thousand, three hundred ninety".