39289717940 has 48 divisors (see below), whose sum is σ = 93112951680. Its totient is φ = 13794506880.

The previous prime is 39289717919. The next prime is 39289717979. The reversal of 39289717940 is 4971798293.

It is a self number, because there is not a number n which added to its sum of digits gives 39289717940.

It is a congruent number.

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, 3072752 + ... + 3085511.

It is an arithmetic number, because the mean of its divisors is an integer number (1939853160).

Almost surely, 2^39289717940 is an apocalyptic number.

It is an amenable number.

39289717940 is an abundant number, since it is smaller than the sum of its proper divisors (53823233740).

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

39289717940 is a wasteful number, since it uses less digits than its factorization.

39289717940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6158312 (or 6158310 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 39289717940 in words is "thirty-nine billion, two hundred eighty-nine million, seven hundred seventeen thousand, nine hundred forty".