442020202 has 16 divisors (see below), whose sum is σ = 714804552. Its totient is φ = 203788800.

The previous prime is 442020149. The next prime is 442020203. The reversal of 442020202 is 202020244.

It can be written as a sum of positive squares in 4 ways, for example, as 408484521 + 33535681 = 20211^2 + 5791^2 .

It is a super-2 number, since 2×442020202² = 390763717952241608, which contains 22 as substring.

442020202 is a modest number, since divided by 20202 gives 442 as remainder.

It is not an unprimeable number, because it can be changed into a prime (442020203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16702 + ... + 34102.

Almost surely, 2^442020202 is an apocalyptic number.

442020202 is a deficient number, since it is larger than the sum of its proper divisors (272784350).

442020202 is a wasteful number, since it uses less digits than its factorization.

442020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18393.

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 442020202 is about 21024.2764917131. The cubic root of 442020202 is about 761.7527654831.

Adding to 442020202 its reverse (202020244), we get a palindrome (644040446).

It can be divided in two parts, 44 and 2020202, that multiplied together give a palindrome (88888888).

The spelling of 442020202 in words is "four hundred forty-two million, twenty thousand, two hundred two".