632145140 has 48 divisors (see below), whose sum is σ = 1460217024. Its totient is φ = 229861280.

The previous prime is 632145127. The next prime is 632145203. The reversal of 632145140 is 41541236.

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, 14747 + ... + 38493.

It is an arithmetic number, because the mean of its divisors is an integer number (30421188).

Almost surely, 2^632145140 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 632145140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730108512).

632145140 is an abundant number, since it is smaller than the sum of its proper divisors (828071884).

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

632145140 is a wasteful number, since it uses less digits than its factorization.

632145140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23789 (or 23765 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 632145140 is about 25142.4966938449. The cubic root of 632145140 is about 858.2337736871.

Adding to 632145140 its reverse (41541236), we get a palindrome (673686376).

The spelling of 632145140 in words is "six hundred thirty-two million, one hundred forty-five thousand, one hundred forty".