451428 has 12 divisors (see below), whose sum is σ = 1053360. Its totient is φ = 150472.

The previous prime is 451411. The next prime is 451439. The reversal of 451428 is 824154.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 451398 and 451407.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 451428.

It is an unprimeable number.

451428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18798 + ... + 18821.

It is an arithmetic number, because the mean of its divisors is an integer number (87780).

2⁴⁵¹⁴²⁸ is an apocalyptic number.

It is an amenable number.

451428 is an abundant number, since it is smaller than the sum of its proper divisors (601932).

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

451428 is a wasteful number, since it uses less digits than its factorization.

451428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37626 (or 37624 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 451428 is about 671.8839185455. The cubic root of 451428 is about 76.7119161572.

It can be divided in two parts, 45142 and 8, that added together give a triangular number (45150 = T₃₀₀).

The spelling of 451428 in words is "four hundred fifty-one thousand, four hundred twenty-eight".