455644 has 12 divisors (see below), whose sum is σ = 911344. Its totient is φ = 195264.

The previous prime is 455627. The next prime is 455647. The reversal of 455644 is 446554.

455644 is an admirable number.

It is a super-2 number, since 2×455644² = 415222909472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 16273 = 455644 / (4 + 5 + 5 + 6 + 4 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455647) 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 3 ways as a sum of consecutive naturals, for example, 8109 + ... + 8164.

2⁴⁵⁵⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

455644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455644 is a wasteful number, since it uses less digits than its factorization.

455644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16284 (or 16282 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 455644 is about 675.0140739274. The cubic root of 455644 is about 76.9499872002.

The spelling of 455644 in words is "four hundred fifty-five thousand, six hundred forty-four".