442124434 has 4 divisors (see below), whose sum is σ = 663186654. Its totient is φ = 221062216.

The previous prime is 442124413. The next prime is 442124437. The reversal of 442124434 is 434421244.

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., 441630225 + 494209 = 21015^2 + 703^2 .

It is not an unprimeable number, because it can be changed into a prime (442124437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110531107 + ... + 110531110.

Almost surely, 2^442124434 is an apocalyptic number.

442124434 is a deficient number, since it is larger than the sum of its proper divisors (221062220).

442124434 is a wasteful number, since it uses less digits than its factorization.

442124434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221062219.

The product of its digits is 12288, while the sum is 28.

The square root of 442124434 is about 21026.7551942757. The cubic root of 442124434 is about 761.8126366336.

Adding to 442124434 its reverse (434421244), we get a palindrome (876545678).

The spelling of 442124434 in words is "four hundred forty-two million, one hundred twenty-four thousand, four hundred thirty-four".