442380423 has 8 divisors (see below), whose sum is σ = 595060848. Its totient is φ = 292310144.

The previous prime is 442380391. The next prime is 442380437. The reversal of 442380423 is 324083244.

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 442380423 - 2⁵ = 442380391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442380493) 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, 652140 + ... + 652817.

It is an arithmetic number, because the mean of its divisors is an integer number (74382606).

Almost surely, 2^442380423 is an apocalyptic number.

442380423 is a deficient number, since it is larger than the sum of its proper divisors (152680425).

442380423 is a wasteful number, since it uses less digits than its factorization.

442380423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305073.

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 442380423 is about 21032.8415341342. The cubic root of 442380423 is about 761.9596375036.

The spelling of 442380423 in words is "four hundred forty-two million, three hundred eighty thousand, four hundred twenty-three".