442378041 has 8 divisors (see below), whose sum is σ = 674099904. Its totient is φ = 252787440.

The previous prime is 442378037. The next prime is 442378043. The reversal of 442378041 is 140873244.

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

It is not a de Polignac number, because 442378041 - 2² = 442378037 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 442377993 and 442378011.

It is not an unprimeable number, because it can be changed into a prime (442378043) 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, 10532790 + ... + 10532831.

It is an arithmetic number, because the mean of its divisors is an integer number (84262488).

Almost surely, 2^442378041 is an apocalyptic number.

It is an amenable number.

442378041 is a deficient number, since it is larger than the sum of its proper divisors (231721863).

442378041 is a wasteful number, since it uses less digits than its factorization.

442378041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21065631.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 442378041 is about 21032.7849083282. The cubic root of 442378041 is about 761.9582699091.

The spelling of 442378041 in words is "four hundred forty-two million, three hundred seventy-eight thousand, forty-one".