442802111 has 16 divisors (see below), whose sum is σ = 478415808. Its totient is φ = 408307200.

The previous prime is 442802099. The next prime is 442802117. The reversal of 442802111 is 111208244.

It is a cyclic number.

It is not a de Polignac number, because 442802111 - 2¹⁴ = 442785727 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 (442802117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321821 + ... + 323193.

It is an arithmetic number, because the mean of its divisors is an integer number (29900988).

Almost surely, 2^442802111 is an apocalyptic number.

442802111 is a deficient number, since it is larger than the sum of its proper divisors (35613697).

442802111 is a wasteful number, since it uses less digits than its factorization.

442802111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 442802111 is about 21042.8636596828. The cubic root of 442802111 is about 762.2016668970.

The spelling of 442802111 in words is "four hundred forty-two million, eight hundred two thousand, one hundred eleven".