442662007 has 4 divisors (see below), whose sum is σ = 442710936. Its totient is φ = 442613080.

The previous prime is 442661993. The next prime is 442662013. The reversal of 442662007 is 700266244.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 442662007 - 2¹⁹ = 442137719 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 442662007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442662037) 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 3 ways as a sum of consecutive naturals, for example, 6493 + ... + 30454.

It is an arithmetic number, because the mean of its divisors is an integer number (110677734).

Almost surely, 2^442662007 is an apocalyptic number.

442662007 is a deficient number, since it is larger than the sum of its proper divisors (48929).

442662007 is a wasteful number, since it uses less digits than its factorization.

442662007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48928.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 442662007 is about 21039.5343817300. The cubic root of 442662007 is about 762.1212707379.

The spelling of 442662007 in words is "four hundred forty-two million, six hundred sixty-two thousand, seven".