39040420608 has 288 divisors, whose sum is σ = 133192926720. Its totient is φ = 11048693760.

The previous prime is 39040420591. The next prime is 39040420631. The reversal of 39040420608 is 80602404093.

It is a happy number.

39040420608 is a `hidden beast` number, since 3 + 9 + 0 + 4 + 0 + 42 + 0 + 608 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5173318 + ... + 5180858.

It is an arithmetic number, because the mean of its divisors is an integer number (462475440).

Almost surely, 2^39040420608 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 39040420608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66596463360).

39040420608 is an abundant number, since it is smaller than the sum of its proper divisors (94152506112).

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

39040420608 is a wasteful number, since it uses less digits than its factorization.

39040420608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7680 (or 7660 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 39040420608 in words is "thirty-nine billion, forty million, four hundred twenty thousand, six hundred eight".