452399328 has 144 divisors (see below), whose sum is σ = 1353905280. Its totient is φ = 143016192.

The previous prime is 452399293. The next prime is 452399341. The reversal of 452399328 is 823993254.

It is a happy number.

452399328 is a `hidden beast` number, since 4 + 523 + 99 + 32 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1079503 + ... + 1079921.

It is an arithmetic number, because the mean of its divisors is an integer number (9402120).

Almost surely, 2^452399328 is an apocalyptic number.

452399328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452399328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (676952640).

452399328 is an abundant number, since it is smaller than the sum of its proper divisors (901505952).

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

452399328 is a wasteful number, since it uses less digits than its factorization.

452399328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 610 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 452399328 is about 21269.6809567045. The cubic root of 452399328 is about 767.6689654060.

The spelling of 452399328 in words is "four hundred fifty-two million, three hundred ninety-nine thousand, three hundred twenty-eight".