442764229 has 4 divisors (see below), whose sum is σ = 443186560. Its totient is φ = 442341900.

The previous prime is 442764221. The next prime is 442764253. The reversal of 442764229 is 922467244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442764229 - 2³ = 442764221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442764191 and 442764200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442764221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209589 + ... + 211690.

It is an arithmetic number, because the mean of its divisors is an integer number (110796640).

Almost surely, 2^442764229 is an apocalyptic number.

It is an amenable number.

442764229 is a deficient number, since it is larger than the sum of its proper divisors (422331).

442764229 is a wasteful number, since it uses less digits than its factorization.

442764229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422330.

The product of its digits is 193536, while the sum is 40.

The square root of 442764229 is about 21041.9635252987. The cubic root of 442764229 is about 762.1799306660.

The spelling of 442764229 in words is "four hundred forty-two million, seven hundred sixty-four thousand, two hundred twenty-nine".