451456 has 16 divisors (see below), whose sum is σ = 899640. Its totient is φ = 225664.

The previous prime is 451441. The next prime is 451481. The reversal of 451456 is 654154.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 451456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1636 + ... + 1891.

2⁴⁵¹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

451456 is a deficient number, since it is larger than the sum of its proper divisors (448184).

451456 is an equidigital number, since it uses as much as digits as its factorization.

451456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3541 (or 3529 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 451456 is about 671.9047551551. The cubic root of 451456 is about 76.7135021533.

The spelling of 451456 in words is "four hundred fifty-one thousand, four hundred fifty-six".