39995842 has 8 divisors (see below), whose sum is σ = 60137532. Its totient is φ = 19950000.

The previous prime is 39995833. The next prime is 39995863. The reversal of 39995842 is 24859993.

It can be written as a sum of positive squares in 2 ways, for example, as 36228361 + 3767481 = 6019^2 + 1941^2 .

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

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, 22909 + ... + 24592.

Almost surely, 2^39995842 is an apocalyptic number.

39995842 is a deficient number, since it is larger than the sum of its proper divisors (20141690).

39995842 is a wasteful number, since it uses less digits than its factorization.

39995842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47924.

The product of its digits is 699840, while the sum is 49.

The square root of 39995842 is about 6324.2265930310. The cubic root of 39995842 is about 341.9833387914.

The spelling of 39995842 in words is "thirty-nine million, nine hundred ninety-five thousand, eight hundred forty-two".