442673459 has 4 divisors (see below), whose sum is σ = 456953280. Its totient is φ = 428393640.

The previous prime is 442673453. The next prime is 442673467. The reversal of 442673459 is 954376244.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442673459 - 2⁴ = 442673443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442673453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139864 + ... + 7139925.

It is an arithmetic number, because the mean of its divisors is an integer number (114238320).

Almost surely, 2^442673459 is an apocalyptic number.

442673459 is a deficient number, since it is larger than the sum of its proper divisors (14279821).

442673459 is a wasteful number, since it uses less digits than its factorization.

442673459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14279820.

The product of its digits is 725760, while the sum is 44.

The square root of 442673459 is about 21039.8065342816. The cubic root of 442673459 is about 762.1278428986.

The spelling of 442673459 in words is "four hundred forty-two million, six hundred seventy-three thousand, four hundred fifty-nine".