451280 has 20 divisors (see below), whose sum is σ = 1049412. Its totient is φ = 180480.

The previous prime is 451279. The next prime is 451301. The reversal of 451280 is 82154.

451280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 341056 + 110224 = 584^2 + 332^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741 + ... + 2900.

2⁴⁵¹²⁸⁰ is an apocalyptic number.

451280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451280 is an abundant number, since it is smaller than the sum of its proper divisors (598132).

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

451280 is a wasteful number, since it uses less digits than its factorization.

451280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5654 (or 5648 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 451280 is about 671.7737714439. The cubic root of 451280 is about 76.7035319449.

It can be divided in two parts, 45 and 1280, that multiplied together give a square (57600 = 240²).

The spelling of 451280 in words is "four hundred fifty-one thousand, two hundred eighty".