42388163 has 4 divisors (see below), whose sum is σ = 42497520. Its totient is φ = 42278808.

The previous prime is 42388117. The next prime is 42388217. The reversal of 42388163 is 36188324.

It is a happy number.

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 42388163 - 2¹⁴ = 42371779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42388763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54095 + ... + 54872.

It is an arithmetic number, because the mean of its divisors is an integer number (10624380).

Almost surely, 2^42388163 is an apocalyptic number.

42388163 is a deficient number, since it is larger than the sum of its proper divisors (109357).

42388163 is a wasteful number, since it uses less digits than its factorization.

42388163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109356.

The product of its digits is 27648, while the sum is 35.

The square root of 42388163 is about 6510.6192485815. The cubic root of 42388163 is about 348.6702275974.

The spelling of 42388163 in words is "forty-two million, three hundred eighty-eight thousand, one hundred sixty-three".