452505872240 has 80 divisors (see below), whose sum is σ = 1062381440736. Its totient is φ = 179237760000.

The previous prime is 452505872237. The next prime is 452505872309. The reversal of 452505872240 is 42278505254.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 452505872191 and 452505872200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3408710 + ... + 3538970.

Almost surely, 2^452505872240 is an apocalyptic number.

452505872240 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 452505872240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531190720368).

452505872240 is an abundant number, since it is smaller than the sum of its proper divisors (609875568496).

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

452505872240 is a wasteful number, since it uses less digits than its factorization.

452505872240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130698 (or 130692 counting only the distinct ones).

The product of its (nonzero) digits is 896000, while the sum is 44.

The spelling of 452505872240 in words is "four hundred fifty-two billion, five hundred five million, eight hundred seventy-two thousand, two hundred forty".