42193847 has 8 divisors (see below), whose sum is σ = 45111456. Its totient is φ = 39324672.

The previous prime is 42193843. The next prime is 42193849. The reversal of 42193847 is 74839124.

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

It is not a de Polignac number, because 42193847 - 2² = 42193843 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 42193847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42193841) 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, 10298 + ... + 13799.

It is an arithmetic number, because the mean of its divisors is an integer number (5638932).

Almost surely, 2^42193847 is an apocalyptic number.

42193847 is a deficient number, since it is larger than the sum of its proper divisors (2917609).

42193847 is a wasteful number, since it uses less digits than its factorization.

42193847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24217.

The product of its digits is 48384, while the sum is 38.

The square root of 42193847 is about 6495.6791022956. The cubic root of 42193847 is about 348.1366195207.

The spelling of 42193847 in words is "forty-two million, one hundred ninety-three thousand, eight hundred forty-seven".