452399994 has 72 divisors (see below), whose sum is σ = 1049761440. Its totient is φ = 140412096.

The previous prime is 452399989. The next prime is 452400007. The reversal of 452399994 is 499993254.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 452399994.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2708899 + ... + 2709065.

It is an arithmetic number, because the mean of its divisors is an integer number (14580020).

Almost surely, 2^452399994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452399994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524880720).

452399994 is an abundant number, since it is smaller than the sum of its proper divisors (597361446).

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

452399994 is a wasteful number, since it uses less digits than its factorization.

452399994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 280 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 452399994 is about 21269.6966127869. The cubic root of 452399994 is about 767.6693421140.

The spelling of 452399994 in words is "four hundred fifty-two million, three hundred ninety-nine thousand, nine hundred ninety-four".