442918369 has 8 divisors (see below), whose sum is σ = 451211040. Its totient is φ = 434652000.

The previous prime is 442918351. The next prime is 442918387. The reversal of 442918369 is 963819244.

It is an interprime number because it is at equal distance from previous prime (442918351) and next prime (442918387).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 442918369 - 2⁷ = 442918241 is a prime.

It is a super-2 number, since 2×442918369² = 392353363195240322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442918309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29214 + ... + 41704.

It is an arithmetic number, because the mean of its divisors is an integer number (56401380).

Almost surely, 2^442918369 is an apocalyptic number.

It is an amenable number.

442918369 is a deficient number, since it is larger than the sum of its proper divisors (8292671).

442918369 is a wasteful number, since it uses less digits than its factorization.

442918369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13151.

The product of its digits is 373248, while the sum is 46.

The square root of 442918369 is about 21045.6258875805. The cubic root of 442918369 is about 762.2683665846.

The spelling of 442918369 in words is "four hundred forty-two million, nine hundred eighteen thousand, three hundred sixty-nine".