442133434 has 4 divisors (see below), whose sum is σ = 663200154. Its totient is φ = 221066716.

The previous prime is 442133423. The next prime is 442133437. The reversal of 442133434 is 434331244.

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., 335073025 + 107060409 = 18305^2 + 10347^2 .

It is not an unprimeable number, because it can be changed into a prime (442133437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110533357 + ... + 110533360.

Almost surely, 2^442133434 is an apocalyptic number.

442133434 is a deficient number, since it is larger than the sum of its proper divisors (221066720).

442133434 is a wasteful number, since it uses less digits than its factorization.

442133434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221066719.

The product of its digits is 13824, while the sum is 28.

The square root of 442133434 is about 21026.9692062361. The cubic root of 442133434 is about 761.8178058173.

Adding to 442133434 its reverse (434331244), we get a palindrome (876464678).

The spelling of 442133434 in words is "four hundred forty-two million, one hundred thirty-three thousand, four hundred thirty-four".