42381995 has 4 divisors (see below), whose sum is σ = 50858400. Its totient is φ = 33905592.

The previous prime is 42381979. The next prime is 42382061. The reversal of 42381995 is 59918324.

42381995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42381995 - 2⁴ = 42381979 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4238195 + ... + 4238204.

It is an arithmetic number, because the mean of its divisors is an integer number (12714600).

Almost surely, 2^42381995 is an apocalyptic number.

42381995 is a deficient number, since it is larger than the sum of its proper divisors (8476405).

42381995 is an equidigital number, since it uses as much as digits as its factorization.

42381995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476404.

The product of its digits is 77760, while the sum is 41.

The square root of 42381995 is about 6510.1455436879. The cubic root of 42381995 is about 348.6533148390.

The spelling of 42381995 in words is "forty-two million, three hundred eighty-one thousand, nine hundred ninety-five".