454428 has 36 divisors (see below), whose sum is σ = 1238328. Its totient is φ = 139680.

The previous prime is 454417. The next prime is 454451. The reversal of 454428 is 824454.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

454428 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 11 ways as a sum of consecutive naturals, for example, 18 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (34398).

2⁴⁵⁴⁴²⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619164).

454428 is an abundant number, since it is smaller than the sum of its proper divisors (783900).

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

454428 is a wasteful number, since it uses less digits than its factorization.

454428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994 (or 989 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 454428 is about 674.1127502132. The cubic root of 454428 is about 76.8814727844.

It can be divided in two parts, 4 and 54428, that multiplied together give a palindrome (217712).

The spelling of 454428 in words is "four hundred fifty-four thousand, four hundred twenty-eight".