442791349 has 32 divisors (see below), whose sum is σ = 609073920. Its totient is φ = 310694400.

The previous prime is 442791337. The next prime is 442791353. The reversal of 442791349 is 943197244.

It is a cyclic number.

It is not a de Polignac number, because 442791349 - 2⁷ = 442791221 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442791389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35647 + ... + 46435.

It is an arithmetic number, because the mean of its divisors is an integer number (19033560).

Almost surely, 2^442791349 is an apocalyptic number.

It is an amenable number.

442791349 is a deficient number, since it is larger than the sum of its proper divisors (166282571).

442791349 is a wasteful number, since it uses less digits than its factorization.

442791349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10861.

The product of its digits is 217728, while the sum is 43.

The square root of 442791349 is about 21042.6079419829. The cubic root of 442791349 is about 762.1954919183.

The spelling of 442791349 in words is "four hundred forty-two million, seven hundred ninety-one thousand, three hundred forty-nine".