442279371 has 4 divisors (see below), whose sum is σ = 589705832. Its totient is φ = 294852912.

The previous prime is 442279339. The next prime is 442279373. The reversal of 442279371 is 173972244.

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

It is not a de Polignac number, because 442279371 - 2⁵ = 442279339 is a prime.

It is a super-2 number, since 2×442279371² = 391222084024311282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442279373) 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, 73713226 + ... + 73713231.

It is an arithmetic number, because the mean of its divisors is an integer number (147426458).

Almost surely, 2^442279371 is an apocalyptic number.

442279371 is a deficient number, since it is larger than the sum of its proper divisors (147426461).

442279371 is a wasteful number, since it uses less digits than its factorization.

442279371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147426460.

The product of its digits is 84672, while the sum is 39.

The square root of 442279371 is about 21030.4391537600. The cubic root of 442279371 is about 761.9016154899.

The spelling of 442279371 in words is "four hundred forty-two million, two hundred seventy-nine thousand, three hundred seventy-one".