4020336324 has 72 divisors (see below), whose sum is σ = 10802603448. Its totient is φ = 1256325120.

The previous prime is 4020336319. The next prime is 4020336361. The reversal of 4020336324 is 4236330204.

It is a happy number.

4020336324 is a `hidden beast` number, since 4 + 0 + 2 + 0 + 336 + 324 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2999533824 + 1020802500 = 54768^2 + 31950^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144504 + ... + 170064.

It is an arithmetic number, because the mean of its divisors is an integer number (150036159).

Almost surely, 2^4020336324 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 4020336324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5401301724).

4020336324 is an abundant number, since it is smaller than the sum of its proper divisors (6782267124).

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

4020336324 is a wasteful number, since it uses less digits than its factorization.

4020336324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25845 (or 25840 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 4020336324 is about 63406.1221334344. The cubic root of 4020336324 is about 1590.0866643162.

Adding to 4020336324 its reverse (4236330204), we get a palindrome (8256666528).

The spelling of 4020336324 in words is "four billion, twenty million, three hundred thirty-six thousand, three hundred twenty-four".