42845999 has 16 divisors (see below), whose sum is σ = 51634176. Its totient is φ = 34776000.

The previous prime is 42845983. The next prime is 42846019. The reversal of 42845999 is 99954824.

It is a happy number.

It is not a de Polignac number, because 42845999 - 2⁴ = 42845983 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 (42845939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8099 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (3227136).

Almost surely, 2^42845999 is an apocalyptic number.

42845999 is a deficient number, since it is larger than the sum of its proper divisors (8788177).

42845999 is a wasteful number, since it uses less digits than its factorization.

42845999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286.

The product of its digits is 933120, while the sum is 50.

The square root of 42845999 is about 6545.6855255962. The cubic root of 42845999 is about 349.9210679148.

The spelling of 42845999 in words is "forty-two million, eight hundred forty-five thousand, nine hundred ninety-nine".