452912128 has 44 divisors (see below), whose sum is σ = 909432972. Its totient is φ = 225443840.

The previous prime is 452912093. The next prime is 452912149. The reversal of 452912128 is 821219254.

It can be written as a sum of positive squares in 2 ways, for example, as 405136384 + 47775744 = 20128^2 + 6912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 452912093 and 452912102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262308 + ... + 264028.

Almost surely, 2^452912128 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 452912128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454716486).

452912128 is an abundant number, since it is smaller than the sum of its proper divisors (456520844).

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

452912128 is a wasteful number, since it uses less digits than its factorization.

452912128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998 (or 1980 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 452912128 is about 21281.7322603213. The cubic root of 452912128 is about 767.9589098386.

The spelling of 452912128 in words is "four hundred fifty-two million, nine hundred twelve thousand, one hundred twenty-eight".