450005378 has 8 divisors (see below), whose sum is σ = 675471360. Its totient is φ = 224848260.

The previous prime is 450005377. The next prime is 450005389. The reversal of 450005378 is 873500054.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (450005377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73538 + ... + 79421.

It is an arithmetic number, because the mean of its divisors is an integer number (84433920).

Almost surely, 2^450005378 is an apocalyptic number.

450005378 is a deficient number, since it is larger than the sum of its proper divisors (225465982).

450005378 is a wasteful number, since it uses less digits than its factorization.

450005378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154432.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 450005378 is about 21213.3301958933. The cubic root of 450005378 is about 766.3124851311.

The spelling of 450005378 in words is "four hundred fifty million, five thousand, three hundred seventy-eight".