442826642 has 16 divisors (see below), whose sum is σ = 719671392. Its totient is φ = 203542080.

The previous prime is 442826641. The next prime is 442826701. The reversal of 442826642 is 246628244.

It is a junction number, because it is equal to n+sod(n) for n = 442826596 and 442826605.

It is not an unprimeable number, because it can be changed into a prime (442826641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149984 + ... + 152907.

It is an arithmetic number, because the mean of its divisors is an integer number (44979462).

Almost surely, 2^442826642 is an apocalyptic number.

442826642 is a deficient number, since it is larger than the sum of its proper divisors (276844750).

442826642 is a wasteful number, since it uses less digits than its factorization.

442826642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302953.

The product of its digits is 147456, while the sum is 38.

The square root of 442826642 is about 21043.4465333034. The cubic root of 442826642 is about 762.2157418253.

The spelling of 442826642 in words is "four hundred forty-two million, eight hundred twenty-six thousand, six hundred forty-two".