442306346 has 4 divisors (see below), whose sum is σ = 663459522. Its totient is φ = 221153172.

The previous prime is 442306327. The next prime is 442306349. The reversal of 442306346 is 643603244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 258405625 + 183900721 = 16075^2 + 13561^2 .

It is not an unprimeable number, because it can be changed into a prime (442306349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110576585 + ... + 110576588.

Almost surely, 2^442306346 is an apocalyptic number.

442306346 is a deficient number, since it is larger than the sum of its proper divisors (221153176).

442306346 is a wasteful number, since it uses less digits than its factorization.

442306346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221153175.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 442306346 is about 21031.0804762856. The cubic root of 442306346 is about 761.9171048537.

The spelling of 442306346 in words is "four hundred forty-two million, three hundred six thousand, three hundred forty-six".