42222147 has 8 divisors (see below), whose sum is σ = 61414080. Its totient is φ = 25589160.

The previous prime is 42222139. The next prime is 42222221. The reversal of 42222147 is 74122224.

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

It is not a de Polignac number, because 42222147 - 2³ = 42222139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42222107) 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, 639697 + ... + 639762.

It is an arithmetic number, because the mean of its divisors is an integer number (7676760).

Almost surely, 2^42222147 is an apocalyptic number.

42222147 is a deficient number, since it is larger than the sum of its proper divisors (19191933).

42222147 is a wasteful number, since it uses less digits than its factorization.

42222147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279473.

The product of its digits is 1792, while the sum is 24.

The square root of 42222147 is about 6497.8571083089. The cubic root of 42222147 is about 348.2144354834.

The spelling of 42222147 in words is "forty-two million, two hundred twenty-two thousand, one hundred forty-seven".