450381 has 8 divisors (see below), whose sum is σ = 635904. Its totient is φ = 282560.

The previous prime is 450377. The next prime is 450383. The reversal of 450381 is 183054.

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 450381 - 2² = 450377 is a prime.

It is a super-2 number, since 2×450381² = 405686090322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4365 + ... + 4466.

It is an arithmetic number, because the mean of its divisors is an integer number (79488).

2⁴⁵⁰³⁸¹ is an apocalyptic number.

It is an amenable number.

450381 is a deficient number, since it is larger than the sum of its proper divisors (185523).

450381 is a wasteful number, since it uses less digits than its factorization.

450381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8851.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 450381 is about 671.1043137993. The cubic root of 450381 is about 76.6525640937.

The spelling of 450381 in words is "four hundred fifty thousand, three hundred eighty-one".