442041619 has 2 divisors, whose sum is σ = 442041620. Its totient is φ = 442041618.

The previous prime is 442041569. The next prime is 442041643. The reversal of 442041619 is 916140244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442041619 - 2⁷ = 442041491 is a prime.

It is a super-2 number, since 2×442041619² = 390801585856282322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (442041659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221020809 + 221020810.

It is an arithmetic number, because the mean of its divisors is an integer number (221020810).

Almost surely, 2^442041619 is an apocalyptic number.

442041619 is a deficient number, since it is larger than the sum of its proper divisors (1).

442041619 is an equidigital number, since it uses as much as digits as its factorization.

442041619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 442041619 is about 21024.7858253063. The cubic root of 442041619 is about 761.7650682357.

The spelling of 442041619 in words is "four hundred forty-two million, forty-one thousand, six hundred nineteen".