442079279 has 4 divisors (see below), whose sum is σ = 443588376. Its totient is φ = 440570184.

The previous prime is 442079243. The next prime is 442079291. The reversal of 442079279 is 972970244.

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 442079279 - 2²⁴ = 425302063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442079579) 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, 754109 + ... + 754694.

It is an arithmetic number, because the mean of its divisors is an integer number (110897094).

Almost surely, 2^442079279 is an apocalyptic number.

442079279 is a deficient number, since it is larger than the sum of its proper divisors (1509097).

442079279 is a wasteful number, since it uses less digits than its factorization.

442079279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1509096.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 442079279 is about 21025.6814158305. The cubic root of 442079279 is about 761.7867006315.

The spelling of 442079279 in words is "four hundred forty-two million, seventy-nine thousand, two hundred seventy-nine".