39442838 has 8 divisors (see below), whose sum is σ = 61736688. Its totient is φ = 18863944.

The previous prime is 39442807. The next prime is 39442847. The reversal of 39442838 is 83824493.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 39442795 and 39442804.

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, 428681 + ... + 428772.

It is an arithmetic number, because the mean of its divisors is an integer number (7717086).

Almost surely, 2^39442838 is an apocalyptic number.

39442838 is a deficient number, since it is larger than the sum of its proper divisors (22293850).

39442838 is a wasteful number, since it uses less digits than its factorization.

39442838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857478.

The product of its digits is 165888, while the sum is 41.

The square root of 39442838 is about 6280.3533340092. The cubic root of 39442838 is about 340.3998697875.

The spelling of 39442838 in words is "thirty-nine million, four hundred forty-two thousand, eight hundred thirty-eight".