42381338 has 8 divisors (see below), whose sum is σ = 63733332. Its totient is φ = 21136896.

The previous prime is 42381301. The next prime is 42381349. The reversal of 42381338 is 83318324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33953929 + 8427409 = 5827^2 + 2903^2 .

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, 25895 + ... + 27482.

Almost surely, 2^42381338 is an apocalyptic number.

42381338 is a deficient number, since it is larger than the sum of its proper divisors (21351994).

42381338 is a wasteful number, since it uses less digits than its factorization.

42381338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53776.

The product of its digits is 13824, while the sum is 32.

The square root of 42381338 is about 6510.0950837910. The cubic root of 42381338 is about 348.6515132374.

The spelling of 42381338 in words is "forty-two million, three hundred eighty-one thousand, three hundred thirty-eight".