4321128252 has 48 divisors (see below), whose sum is σ = 11804067072. Its totient is φ = 1204494720.

The previous prime is 4321128247. The next prime is 4321128269. The reversal of 4321128252 is 2528211234.

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, 623898 + ... + 630785.

It is an arithmetic number, because the mean of its divisors is an integer number (245918064).

Almost surely, 2^4321128252 is an apocalyptic number.

4321128252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4321128252 is an abundant number, since it is smaller than the sum of its proper divisors (7482938820).

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

4321128252 is a wasteful number, since it uses less digits than its factorization.

4321128252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254738 (or 1254736 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 4321128252 is about 65735.2892440582. The cubic root of 4321128252 is about 1628.7923422037.

Adding to 4321128252 its reverse (2528211234), we get a palindrome (6849339486).

The spelling of 4321128252 in words is "four billion, three hundred twenty-one million, one hundred twenty-eight thousand, two hundred fifty-two".