39240272736 has 144 divisors (see below), whose sum is σ = 127617313824. Its totient is φ = 11203909632.

The previous prime is 39240272717. The next prime is 39240272741. The reversal of 39240272736 is 63727204293.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 39240272691 and 39240272700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3407340 + ... + 3418836.

It is an arithmetic number, because the mean of its divisors is an integer number (886231346).

Almost surely, 2^39240272736 is an apocalyptic number.

39240272736 is a gapful number since it is divisible by the number (36) 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 39240272736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63808656912).

39240272736 is an abundant number, since it is smaller than the sum of its proper divisors (88377041088).

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

39240272736 is a wasteful number, since it uses less digits than its factorization.

39240272736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13213 (or 13202 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 39240272736 in words is "thirty-nine billion, two hundred forty million, two hundred seventy-two thousand, seven hundred thirty-six".