442444419 has 6 divisors (see below), whose sum is σ = 639086396. Its totient is φ = 294962940.

The previous prime is 442444411. The next prime is 442444421. The reversal of 442444419 is 914444244.

It is not a de Polignac number, because 442444419 - 2³ = 442444411 is a prime.

It is a super-2 number, since 2×442444419² = 391514127808495122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442444411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24580237 + ... + 24580254.

Almost surely, 2^442444419 is an apocalyptic number.

442444419 is a deficient number, since it is larger than the sum of its proper divisors (196641977).

442444419 is a wasteful number, since it uses less digits than its factorization.

442444419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49160497 (or 49160494 counting only the distinct ones).

The product of its digits is 73728, while the sum is 36.

The square root of 442444419 is about 21034.3628142143. The cubic root of 442444419 is about 761.9963781422.

The spelling of 442444419 in words is "four hundred forty-two million, four hundred forty-four thousand, four hundred nineteen".