451628 has 12 divisors (see below), whose sum is σ = 824880. Its totient is φ = 215952.

The previous prime is 451621. The next prime is 451637. The reversal of 451628 is 826154.

It is an Ulam number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 451597 and 451606.

It is not an unprimeable number, because it can be changed into a prime (451621) 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, 2363 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (68740).

2⁴⁵¹⁶²⁸ is an apocalyptic number.

It is an amenable number.

451628 is a deficient number, since it is larger than the sum of its proper divisors (373252).

451628 is a wasteful number, since it uses less digits than its factorization.

451628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4936 (or 4934 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 451628 is about 672.0327372978. The cubic root of 451628 is about 76.7232432629.

The spelling of 451628 in words is "four hundred fifty-one thousand, six hundred twenty-eight".