452336640 has 264 divisors, whose sum is σ = 1685778192. Its totient is φ = 103219200.

The previous prime is 452336617. The next prime is 452336683. The reversal of 452336640 is 46633254.

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, 752340 + ... + 752940.

Almost surely, 2^452336640 is an apocalyptic number.

452336640 is a gapful number since it is divisible by the number (40) 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 452336640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842889096).

452336640 is an abundant number, since it is smaller than the sum of its proper divisors (1233441552).

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

452336640 is a wasteful number, since it uses less digits than its factorization.

452336640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The square root of 452336640 is about 21268.2072587231. The cubic root of 452336640 is about 767.6335056900.

Adding to 452336640 its reverse (46633254), we get a palindrome (498969894).

The spelling of 452336640 in words is "four hundred fifty-two million, three hundred thirty-six thousand, six hundred forty".