42845219 has 8 divisors (see below), whose sum is σ = 45807840. Its totient is φ = 39931776.

The previous prime is 42845203. The next prime is 42845237. The reversal of 42845219 is 91254824.

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

It is not a de Polignac number, because 42845219 - 2⁴ = 42845203 is a prime.

It is a super-2 number, since 2×42845219² = 3671425582315922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42845239) 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, 10484 + ... + 13985.

It is an arithmetic number, because the mean of its divisors is an integer number (5725980).

Almost surely, 2^42845219 is an apocalyptic number.

42845219 is a deficient number, since it is larger than the sum of its proper divisors (2962621).

42845219 is a wasteful number, since it uses less digits than its factorization.

42845219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24589.

The product of its digits is 23040, while the sum is 35.

The square root of 42845219 is about 6545.6259440943. The cubic root of 42845219 is about 349.9189444953.

The spelling of 42845219 in words is "forty-two million, eight hundred forty-five thousand, two hundred nineteen".