442444420 has 24 divisors (see below), whose sum is σ = 1013600448. Its totient is φ = 160888800.

The previous prime is 442444411. The next prime is 442444421. The reversal of 442444420 is 24444244.

It is not an unprimeable number, because it can be changed into a prime (442444421) 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, 1005336 + ... + 1005775.

It is an arithmetic number, because the mean of its divisors is an integer number (42233352).

Almost surely, 2^442444420 is an apocalyptic number.

It is an amenable number.

442444420 is an abundant number, since it is smaller than the sum of its proper divisors (571156028).

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

442444420 is a wasteful number, since it uses less digits than its factorization.

442444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011131 (or 2011129 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

The square root of 442444420 is about 21034.3628379849. The cubic root of 442444420 is about 761.9963787163.

Adding to 442444420 its reverse (24444244), we get a palindrome (466888664).

It can be divided in two parts, 4 and 42444420, that added together give a palindrome (42444424).

The spelling of 442444420 in words is "four hundred forty-two million, four hundred forty-four thousand, four hundred twenty".