442203420 has 24 divisors (see below), whose sum is σ = 1238169744. Its totient is φ = 117920896.

The previous prime is 442203373. The next prime is 442203431. The reversal of 442203420 is 24302244.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3684969 + ... + 3685088.

It is an arithmetic number, because the mean of its divisors is an integer number (51590406).

Almost surely, 2^442203420 is an apocalyptic number.

It is an amenable number.

442203420 is an abundant number, since it is smaller than the sum of its proper divisors (795966324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442203420 is a wasteful number, since it uses less digits than its factorization.

442203420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370069 (or 7370067 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 442203420 is about 21028.6333364772. The cubic root of 442203420 is about 761.8580001447.

Adding to 442203420 its reverse (24302244), we get a palindrome (466505664).

The spelling of 442203420 in words is "four hundred forty-two million, two hundred three thousand, four hundred twenty".