39381982740 has 144 divisors (see below), whose sum is σ = 130566159360. Its totient is φ = 9565240320.

The previous prime is 39381982733. The next prime is 39381982751. The reversal of 39381982740 is 4728918393.

39381982740 is a `hidden beast` number, since 393 + 8 + 198 + 27 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 112720 + ... + 302439.

It is an arithmetic number, because the mean of its divisors is an integer number (906709440).

Almost surely, 2^39381982740 is an apocalyptic number.

39381982740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39381982740 is an abundant number, since it is smaller than the sum of its proper divisors (91184176620).

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

39381982740 is a wasteful number, since it uses less digits than its factorization.

39381982740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415222 (or 415217 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

It can be divided in two parts, 39381 and 982740, that added together give a square (1022121 = 1011²).

The spelling of 39381982740 in words is "thirty-nine billion, three hundred eighty-one million, nine hundred eighty-two thousand, seven hundred forty".