442450634 has 4 divisors (see below), whose sum is σ = 663675954. Its totient is φ = 221225316.

The previous prime is 442450633. The next prime is 442450643. The reversal of 442450634 is 436054244.

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., 306145009 + 136305625 = 17497^2 + 11675^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 442450634.

It is not an unprimeable number, because it can be changed into a prime (442450633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110612657 + ... + 110612660.

Almost surely, 2^442450634 is an apocalyptic number.

442450634 is a deficient number, since it is larger than the sum of its proper divisors (221225320).

442450634 is a wasteful number, since it uses less digits than its factorization.

442450634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221225319.

The product of its (nonzero) digits is 46080, while the sum is 32.

The square root of 442450634 is about 21034.5105481444. The cubic root of 442450634 is about 761.9999460369. Note that the first 4 decimals are identical.

The spelling of 442450634 in words is "four hundred forty-two million, four hundred fifty thousand, six hundred thirty-four".