442033444 has 6 divisors (see below), whose sum is σ = 773558534. Its totient is φ = 221016720.

The previous prime is 442033441. The next prime is 442033447. The reversal of 442033444 is 444330244.

It is an interprime number because it is at equal distance from previous prime (442033441) and next prime (442033447).

It can be written as a sum of positive squares in only one way, i.e., 308353600 + 133679844 = 17560^2 + 11562^2 .

It is a super-2 number, since 2×442033444² = 390787131229002272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (442033441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55254177 + ... + 55254184.

Almost surely, 2^442033444 is an apocalyptic number.

It is an amenable number.

442033444 is a deficient number, since it is larger than the sum of its proper divisors (331525090).

442033444 is a wasteful number, since it uses less digits than its factorization.

442033444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110508365 (or 110508363 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 442033444 is about 21024.5914110120. The cubic root of 442033444 is about 761.7603722466.

Adding to 442033444 its reverse (444330244), we get a palindrome (886363688).

The spelling of 442033444 in words is "four hundred forty-two million, thirty-three thousand, four hundred forty-four".