452032140 has 96 divisors (see below), whose sum is σ = 1450681344. Its totient is φ = 103023360.

The previous prime is 452032127. The next prime is 452032151. The reversal of 452032140 is 41230254.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165385 + ... + 168095.

It is an arithmetic number, because the mean of its divisors is an integer number (15111264).

Almost surely, 2^452032140 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 452032140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725340672).

452032140 is an abundant number, since it is smaller than the sum of its proper divisors (998649204).

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

452032140 is a wasteful number, since it uses less digits than its factorization.

452032140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127 (or 3125 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 452032140 is about 21261.0474812508. The cubic root of 452032140 is about 767.4612174343.

Adding to 452032140 its reverse (41230254), we get a palindrome (493262394).

The spelling of 452032140 in words is "four hundred fifty-two million, thirty-two thousand, one hundred forty".