4372321028 has 12 divisors (see below), whose sum is σ = 7652129100. Its totient is φ = 2185998432.

The previous prime is 4372321027. The next prime is 4372321049. The reversal of 4372321028 is 8201232734.

It can be written as a sum of positive squares in 2 ways, for example, as 2778554944 + 1593766084 = 52712^2 + 39922^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4372320985 and 4372321003.

It is not an unprimeable number, because it can be changed into a prime (4372321027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36398 + ... + 100346.

It is an arithmetic number, because the mean of its divisors is an integer number (637677425).

Almost surely, 2^4372321028 is an apocalyptic number.

It is an amenable number.

4372321028 is a deficient number, since it is larger than the sum of its proper divisors (3279808072).

4372321028 is a wasteful number, since it uses less digits than its factorization.

4372321028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81046 (or 81044 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4372321028 is about 66123.5285507360. The cubic root of 4372321028 is about 1635.1992547393.

The spelling of 4372321028 in words is "four billion, three hundred seventy-two million, three hundred twenty-one thousand, twenty-eight".