42188365 has 8 divisors (see below), whose sum is σ = 52259328. Its totient is φ = 32661840.

The previous prime is 42188353. The next prime is 42188369. The reversal of 42188365 is 56388124.

It is a happy number.

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

It is not a de Polignac number, because 42188365 - 2¹¹ = 42186317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42188369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135937 + ... + 136246.

It is an arithmetic number, because the mean of its divisors is an integer number (6532416).

Almost surely, 2^42188365 is an apocalyptic number.

It is an amenable number.

42188365 is a deficient number, since it is larger than the sum of its proper divisors (10070963).

42188365 is a wasteful number, since it uses less digits than its factorization.

42188365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272219.

The product of its digits is 46080, while the sum is 37.

The square root of 42188365 is about 6495.2571157730. The cubic root of 42188365 is about 348.1215417488.

The spelling of 42188365 in words is "forty-two million, one hundred eighty-eight thousand, three hundred sixty-five".