452807640 has 96 divisors (see below), whose sum is σ = 1486910880. Its totient is φ = 119494656.

The previous prime is 452807623. The next prime is 452807659. The reversal of 452807640 is 46708254.

452807640 is a `hidden beast` number, since 4 + 5 + 2 + 8 + 0 + 7 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 452807595 and 452807604.

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, 28437 + ... + 41403.

It is an arithmetic number, because the mean of its divisors is an integer number (15488655).

Almost surely, 2^452807640 is an apocalyptic number.

452807640 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 452807640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743455440).

452807640 is an abundant number, since it is smaller than the sum of its proper divisors (1034103240).

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

452807640 is a wasteful number, since it uses less digits than its factorization.

452807640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13081 (or 13074 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 452807640 is about 21279.2772433652. The cubic root of 452807640 is about 767.8998485939.

The spelling of 452807640 in words is "four hundred fifty-two million, eight hundred seven thousand, six hundred forty".