42189927 has 8 divisors (see below), whose sum is σ = 60580464. Its totient is φ = 25963008.

The previous prime is 42189913. The next prime is 42189941. The reversal of 42189927 is 72998124.

It is an interprime number because it is at equal distance from previous prime (42189913) and next prime (42189941).

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

It is not a de Polignac number, because 42189927 - 2⁴ = 42189911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42189907) 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, 540858 + ... + 540935.

It is an arithmetic number, because the mean of its divisors is an integer number (7572558).

Almost surely, 2^42189927 is an apocalyptic number.

42189927 is a deficient number, since it is larger than the sum of its proper divisors (18390537).

42189927 is a wasteful number, since it uses less digits than its factorization.

42189927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081809.

The product of its digits is 72576, while the sum is 42.

The square root of 42189927 is about 6495.3773562434. The cubic root of 42189927 is about 348.1258380292.

The spelling of 42189927 in words is "forty-two million, one hundred eighty-nine thousand, nine hundred twenty-seven".