39442448 has 20 divisors (see below), whose sum is σ = 80915580. Its totient is φ = 18561024.

The previous prime is 39442427. The next prime is 39442453. The reversal of 39442448 is 84424493.

It can be written as a sum of positive squares in 2 ways, for example, as 15745024 + 23697424 = 3968^2 + 4868^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72233 + ... + 72776.

It is an arithmetic number, because the mean of its divisors is an integer number (4045779).

Almost surely, 2^39442448 is an apocalyptic number.

It is an amenable number.

39442448 is an abundant number, since it is smaller than the sum of its proper divisors (41473132).

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

39442448 is a wasteful number, since it uses less digits than its factorization.

39442448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145034 (or 145028 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 39442448 is about 6280.3222847239. The cubic root of 39442448 is about 340.3987478568.

The spelling of 39442448 in words is "thirty-nine million, four hundred forty-two thousand, four hundred forty-eight".