442047147 has 8 divisors (see below), whose sum is σ = 589638144. Its totient is φ = 294577128.

The previous prime is 442047121. The next prime is 442047157. The reversal of 442047147 is 741740244.

It is a happy number.

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

It is not a de Polignac number, because 442047147 - 2¹⁵ = 442014379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442047157) 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, 21343 + ... + 36600.

It is an arithmetic number, because the mean of its divisors is an integer number (73704768).

Almost surely, 2^442047147 is an apocalyptic number.

442047147 is a deficient number, since it is larger than the sum of its proper divisors (147590997).

442047147 is a wasteful number, since it uses less digits than its factorization.

442047147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60489.

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 442047147 is about 21024.9172887790. The cubic root of 442047147 is about 761.7682436680.

The spelling of 442047147 in words is "four hundred forty-two million, forty-seven thousand, one hundred forty-seven".