42858189 has 24 divisors (see below), whose sum is σ = 68245632. Its totient is φ = 25701120.

The previous prime is 42858181. The next prime is 42858203. The reversal of 42858189 is 98185824.

It is a happy number.

It is not a de Polignac number, because 42858189 - 2³ = 42858181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42858181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7372 + ... + 11834.

It is an arithmetic number, because the mean of its divisors is an integer number (2843568).

Almost surely, 2^42858189 is an apocalyptic number.

It is an amenable number.

42858189 is a deficient number, since it is larger than the sum of its proper divisors (25387443).

42858189 is a wasteful number, since it uses less digits than its factorization.

42858189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4574 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 42858189 is about 6546.6166070727. The cubic root of 42858189 is about 349.9542498023.

The spelling of 42858189 in words is "forty-two million, eight hundred fifty-eight thousand, one hundred eighty-nine".