42861099 has 8 divisors (see below), whose sum is σ = 57737680. Its totient is φ = 28279296.

The previous prime is 42861083. The next prime is 42861109. The reversal of 42861099 is 99016824.

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

It is not a de Polignac number, because 42861099 - 2⁴ = 42861083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42861079) 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, 73354 + ... + 73935.

It is an arithmetic number, because the mean of its divisors is an integer number (7217210).

Almost surely, 2^42861099 is an apocalyptic number.

42861099 is a deficient number, since it is larger than the sum of its proper divisors (14876581).

42861099 is a wasteful number, since it uses less digits than its factorization.

42861099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147389.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 42861099 is about 6546.8388555088. The cubic root of 42861099 is about 349.9621700609.

The spelling of 42861099 in words is "forty-two million, eight hundred sixty-one thousand, ninety-nine".