443420004442 has 4 divisors (see below), whose sum is σ = 665130006666. Its totient is φ = 221710002220.

The previous prime is 443420004439. The next prime is 443420004463. The reversal of 443420004442 is 244400024344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 443277655681 + 142348761 = 665791^2 + 11931^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110855001109 + ... + 110855001112.

Almost surely, 2^443420004442 is an apocalyptic number.

443420004442 is a deficient number, since it is larger than the sum of its proper divisors (221710002224).

443420004442 is a wasteful number, since it uses less digits than its factorization.

443420004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221710002223.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 443420004442 its reverse (244400024344), we get a palindrome (687820028786).

The spelling of 443420004442 in words is "four hundred forty-three billion, four hundred twenty million, four thousand, four hundred forty-two".