442542201 has 4 divisors (see below), whose sum is σ = 590056272. Its totient is φ = 295028132.

The previous prime is 442542173. The next prime is 442542253. The reversal of 442542201 is 102245244.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442542201 - 2⁶ = 442542137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442542101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73757031 + ... + 73757036.

It is an arithmetic number, because the mean of its divisors is an integer number (147514068).

Almost surely, 2^442542201 is an apocalyptic number.

It is an amenable number.

442542201 is a deficient number, since it is larger than the sum of its proper divisors (147514071).

442542201 is a wasteful number, since it uses less digits than its factorization.

442542201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147514070.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 442542201 is about 21036.6870252899. The cubic root of 442542201 is about 762.0525087644.

Adding to 442542201 its reverse (102245244), we get a palindrome (544787445).

The spelling of 442542201 in words is "four hundred forty-two million, five hundred forty-two thousand, two hundred one".