442254434 has 4 divisors (see below), whose sum is σ = 663381654. Its totient is φ = 221127216.

The previous prime is 442254409. The next prime is 442254481. The reversal of 442254434 is 434452244.

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., 358988809 + 83265625 = 18947^2 + 9125^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 442254434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110563607 + ... + 110563610.

Almost surely, 2^442254434 is an apocalyptic number.

442254434 is a deficient number, since it is larger than the sum of its proper divisors (221127220).

442254434 is a wasteful number, since it uses less digits than its factorization.

442254434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221127219.

The product of its digits is 61440, while the sum is 32.

The square root of 442254434 is about 21029.8462666754. The cubic root of 442254434 is about 761.8872958096.

The spelling of 442254434 in words is "four hundred forty-two million, two hundred fifty-four thousand, four hundred thirty-four".