39040290040 has 32 divisors (see below), whose sum is σ = 89077851360. Its totient is φ = 15396169600.

The previous prime is 39040290031. The next prime is 39040290097. The reversal of 39040290040 is 4009204093.

It is a junction number, because it is equal to n+sod(n) for n = 39040289984 and 39040290011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6870451 + ... + 6876130.

It is an arithmetic number, because the mean of its divisors is an integer number (2783682855).

Almost surely, 2^39040290040 is an apocalyptic number.

It is an amenable number.

39040290040 is an abundant number, since it is smaller than the sum of its proper divisors (50037561320).

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

39040290040 is a wasteful number, since it uses less digits than its factorization.

39040290040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13746663 (or 13746659 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 39040290040 in words is "thirty-nine billion, forty million, two hundred ninety thousand, forty".