39424446464 has 104 divisors (see below), whose sum is σ = 88598049792. Its totient is φ = 17404231680.

The previous prime is 39424446449. The next prime is 39424446541. The reversal of 39424446464 is 46464442493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (104).

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, 1208609 + ... + 1240799.

Almost surely, 2^39424446464 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 39424446464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44299024896).

39424446464 is an abundant number, since it is smaller than the sum of its proper divisors (49173603328).

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

39424446464 is a wasteful number, since it uses less digits than its factorization.

39424446464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32251 (or 32229 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 50.

The spelling of 39424446464 in words is "thirty-nine billion, four hundred twenty-four million, four hundred forty-six thousand, four hundred sixty-four".