42295138 has 8 divisors (see below), whose sum is σ = 63470700. Its totient is φ = 21138240.

The previous prime is 42295081. The next prime is 42295147. The reversal of 42295138 is 83159224.

42295138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41177889 + 1117249 = 6417^2 + 1057^2 .

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

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, 5038 + ... + 10486.

Almost surely, 2^42295138 is an apocalyptic number.

42295138 is a deficient number, since it is larger than the sum of its proper divisors (21175562).

42295138 is a wasteful number, since it uses less digits than its factorization.

42295138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332.

The product of its digits is 17280, while the sum is 34.

The square root of 42295138 is about 6503.4712269679. The cubic root of 42295138 is about 348.4149770597.

The spelling of 42295138 in words is "forty-two million, two hundred ninety-five thousand, one hundred thirty-eight".