452487780 has 144 divisors (see below), whose sum is σ = 1435359744. Its totient is φ = 115246080.

The previous prime is 452487769. The next prime is 452487781. The reversal of 452487780 is 87784254.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (452487781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 462652 + ... + 463628.

It is an arithmetic number, because the mean of its divisors is an integer number (9967776).

Almost surely, 2^452487780 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 452487780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717679872).

452487780 is an abundant number, since it is smaller than the sum of its proper divisors (982871964).

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

452487780 is a wasteful number, since it uses less digits than its factorization.

452487780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 452487780 is about 21271.7601528411. The cubic root of 452487780 is about 767.7189930595.

The spelling of 452487780 in words is "four hundred fifty-two million, four hundred eighty-seven thousand, seven hundred eighty".