442420412 has 18 divisors (see below), whose sum is σ = 900641952. Its totient is φ = 189608664.

The previous prime is 442420411. The next prime is 442420423. The reversal of 442420412 is 214024244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442420411) 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 5 ways as a sum of consecutive naturals, for example, 1128428 + ... + 1128819.

It is an arithmetic number, because the mean of its divisors is an integer number (50035664).

Almost surely, 2^442420412 is an apocalyptic number.

It is an amenable number.

442420412 is an abundant number, since it is smaller than the sum of its proper divisors (458221540).

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

442420412 is a wasteful number, since it uses less digits than its factorization.

442420412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257265 (or 2257256 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 442420412 is about 21033.7921450223. The cubic root of 442420412 is about 761.9825959381.

Adding to 442420412 its reverse (214024244), we get a palindrome (656444656).

The spelling of 442420412 in words is "four hundred forty-two million, four hundred twenty thousand, four hundred twelve".