42018899 has 16 divisors (see below), whose sum is σ = 47873280. Its totient is φ = 36560160.

The previous prime is 42018887. The next prime is 42018913. The reversal of 42018899 is 99881024.

It is not a de Polignac number, because 42018899 - 2¹⁶ = 41953363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42014899) 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, 76544 + ... + 77090.

It is an arithmetic number, because the mean of its divisors is an integer number (2992080).

Almost surely, 2^42018899 is an apocalyptic number.

42018899 is a deficient number, since it is larger than the sum of its proper divisors (5854381).

42018899 is a wasteful number, since it uses less digits than its factorization.

42018899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 42018899 is about 6482.1986239238. The cubic root of 42018899 is about 347.6547943113.

The spelling of 42018899 in words is "forty-two million, eighteen thousand, eight hundred ninety-nine".