39446449152 has 132 divisors (see below), whose sum is σ = 115567282488. Its totient is φ = 11953356800.

The previous prime is 39446449129. The next prime is 39446449177. The reversal of 39446449152 is 25194464493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (132).

It is a junction number, because it is equal to n+sod(n) for n = 39446449095 and 39446449104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318652 + ... + 424772.

Almost surely, 2^39446449152 is an apocalyptic number.

39446449152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39446449152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57783641244).

39446449152 is an abundant number, since it is smaller than the sum of its proper divisors (76120833336).

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

39446449152 is a wasteful number, since it uses less digits than its factorization.

39446449152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106166 (or 106137 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 51.

The spelling of 39446449152 in words is "thirty-nine billion, four hundred forty-six million, four hundred forty-nine thousand, one hundred fifty-two".