42042199 has 8 divisors (see below), whose sum is σ = 43569360. Its totient is φ = 40520256.

The previous prime is 42042191. The next prime is 42042211. The reversal of 42042199 is 99124024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42042199 - 2³ = 42042191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42042199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42042191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23107 + ... + 24859.

It is an arithmetic number, because the mean of its divisors is an integer number (5446170).

Almost surely, 2^42042199 is an apocalyptic number.

42042199 is a deficient number, since it is larger than the sum of its proper divisors (1527161).

42042199 is a wasteful number, since it uses less digits than its factorization.

42042199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 42042199 is about 6483.9956045636. The cubic root of 42042199 is about 347.7190420674.

The spelling of 42042199 in words is "forty-two million, forty-two thousand, one hundred ninety-nine".