39142071940 has 48 divisors (see below), whose sum is σ = 87074652672. Its totient is φ = 14728879616.

The previous prime is 39142071907. The next prime is 39142071953. The reversal of 39142071940 is 4917024193.

It is a super-2 number, since 2×39142071940² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 39142071893 and 39142071902.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 724299 + ... + 776461.

It is an arithmetic number, because the mean of its divisors is an integer number (1814055264).

Almost surely, 2^39142071940 is an apocalyptic number.

It is an amenable number.

39142071940 is an abundant number, since it is smaller than the sum of its proper divisors (47932580732).

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

39142071940 is a wasteful number, since it uses less digits than its factorization.

39142071940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54396 (or 54394 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 39142071940 in words is "thirty-nine billion, one hundred forty-two million, seventy-one thousand, nine hundred forty".