452644864 has 52 divisors (see below), whose sum is σ = 1034556064. Its totient is φ = 193978368.

The previous prime is 452644823. The next prime is 452644867. The reversal of 452644864 is 468446254.

It is a self number, because there is not a number n which added to its sum of digits gives 452644864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452644867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20779 + ... + 36565.

Almost surely, 2^452644864 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 452644864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517278032).

452644864 is an abundant number, since it is smaller than the sum of its proper divisors (581911200).

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

452644864 is an equidigital number, since it uses as much as digits as its factorization.

452644864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15818 (or 15796 counting only the distinct ones).

The product of its digits is 737280, while the sum is 43.

The square root of 452644864 is about 21275.4521456067. The cubic root of 452644864 is about 767.8078222855.

The spelling of 452644864 in words is "four hundred fifty-two million, six hundred forty-four thousand, eight hundred sixty-four".