450561 has 8 divisors (see below), whose sum is σ = 607104. Its totient is φ = 297200.

The previous prime is 450557. The next prime is 450563. The reversal of 450561 is 165054.

It is a happy number.

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 450561 - 2² = 450557 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (450563) 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, 441 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (75888).

It is a Proth number, since it is equal to 55 ⋅ 2¹³ + 1 and 55 < 2¹³.

2⁴⁵⁰⁵⁶¹ is an apocalyptic number.

It is an amenable number.

450561 is a deficient number, since it is larger than the sum of its proper divisors (156543).

450561 is a wasteful number, since it uses less digits than its factorization.

450561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 450561 is about 671.2384077211. The cubic root of 450561 is about 76.6627744296.

The spelling of 450561 in words is "four hundred fifty thousand, five hundred sixty-one".