442898705 has 16 divisors (see below), whose sum is σ = 580898304. Its totient is φ = 322717440.

The previous prime is 442898699. The next prime is 442898713. The reversal of 442898705 is 507898244.

It is a happy number.

It is not a de Polignac number, because 442898705 - 2⁴ = 442898689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 442898705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81407 + ... + 86676.

It is an arithmetic number, because the mean of its divisors is an integer number (36306144).

Almost surely, 2^442898705 is an apocalyptic number.

It is an amenable number.

442898705 is a deficient number, since it is larger than the sum of its proper divisors (137999599).

442898705 is a wasteful number, since it uses less digits than its factorization.

442898705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168136.

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 442898705 is about 21045.1587069331. The cubic root of 442898705 is about 762.2570857497.

The spelling of 442898705 in words is "four hundred forty-two million, eight hundred ninety-eight thousand, seven hundred five".