442220044 has 24 divisors (see below), whose sum is σ = 886965408. Its totient is φ = 188981760.

The previous prime is 442219957. The next prime is 442220063. The reversal of 442220044 is 440022244.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 442219997 and 442220024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12487 + ... + 32254.

It is an arithmetic number, because the mean of its divisors is an integer number (36956892).

Almost surely, 2^442220044 is an apocalyptic number.

It is an amenable number.

442220044 is an abundant number, since it is smaller than the sum of its proper divisors (444745364).

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

442220044 is a wasteful number, since it uses less digits than its factorization.

442220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45105 (or 45103 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 442220044 is about 21029.0286033378. The cubic root of 442220044 is about 761.8675470094.

Adding to 442220044 its reverse (440022244), we get a palindrome (882242288).

It can be divided in two parts, 4422200 and 44, that added together give a palindrome (4422244).

The spelling of 442220044 in words is "four hundred forty-two million, two hundred twenty thousand, forty-four".