454513428 has 72 divisors (see below), whose sum is σ = 1219399272. Its totient is φ = 142252032.

The previous prime is 454513427. The next prime is 454513441. The reversal of 454513428 is 824315454.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 226261764 + 228251664 = 15042^2 + 15108^2 .

It is a super-2 number, since 2×454513428² = 413164912464622368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 454513392 and 454513401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454513427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413776 + ... + 414872.

It is an arithmetic number, because the mean of its divisors is an integer number (16936101).

Almost surely, 2^454513428 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 454513428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609699636).

454513428 is an abundant number, since it is smaller than the sum of its proper divisors (764885844).

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

454513428 is a wasteful number, since it uses less digits than its factorization.

454513428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801 (or 1796 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 454513428 is about 21319.3205332628. The cubic root of 454513428 is about 768.8629013638.

The spelling of 454513428 in words is "four hundred fifty-four million, five hundred thirteen thousand, four hundred twenty-eight".