442064141 has 4 divisors (see below), whose sum is σ = 468067932. Its totient is φ = 416060352.

The previous prime is 442064137. The next prime is 442064213. The reversal of 442064141 is 141460244.

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 122190916 + 319873225 = 11054^2 + 17885^2 .

It is a cyclic number.

It is not a de Polignac number, because 442064141 - 2² = 442064137 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 442064141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442064111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13001870 + ... + 13001903.

It is an arithmetic number, because the mean of its divisors is an integer number (117016983).

Almost surely, 2^442064141 is an apocalyptic number.

It is an amenable number.

442064141 is a deficient number, since it is larger than the sum of its proper divisors (26003791).

442064141 is a wasteful number, since it uses less digits than its factorization.

442064141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26003790.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 442064141 is about 21025.3214244158. The cubic root of 442064141 is about 761.7780053143.

The spelling of 442064141 in words is "four hundred forty-two million, sixty-four thousand, one hundred forty-one".