39378316340 has 96 divisors (see below), whose sum is σ = 94910876928. Its totient is φ = 13592448000.

The previous prime is 39378316291. The next prime is 39378316349. The reversal of 39378316340 is 4361387393.

It is a super-2 number, since 2×39378316340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39378316349) 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, 274745 + ... + 392735.

It is an arithmetic number, because the mean of its divisors is an integer number (988654968).

Almost surely, 2^39378316340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39378316340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47455438464).

39378316340 is an abundant number, since it is smaller than the sum of its proper divisors (55532560588).

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

39378316340 is a wasteful number, since it uses less digits than its factorization.

39378316340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118089 (or 118087 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 39378316340 in words is "thirty-nine billion, three hundred seventy-eight million, three hundred sixteen thousand, three hundred forty".