442136701 has 4 divisors (see below), whose sum is σ = 443531772. Its totient is φ = 440741632.

The previous prime is 442136699. The next prime is 442136711. The reversal of 442136701 is 107631244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45091225 + 397045476 = 6715^2 + 19926^2 .

It is a cyclic number.

It is not a de Polignac number, because 442136701 - 2¹ = 442136699 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 442136701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442136711) 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, 697060 + ... + 697693.

It is an arithmetic number, because the mean of its divisors is an integer number (110882943).

Almost surely, 2^442136701 is an apocalyptic number.

It is an amenable number.

442136701 is a deficient number, since it is larger than the sum of its proper divisors (1395071).

442136701 is a wasteful number, since it uses less digits than its factorization.

442136701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395070.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 442136701 is about 21027.0468920388. The cubic root of 442136701 is about 761.8196822136.

Adding to 442136701 its reverse (107631244), we get a palindrome (549767945).

The spelling of 442136701 in words is "four hundred forty-two million, one hundred thirty-six thousand, seven hundred one".