4021013500 has 144 divisors (see below), whose sum is σ = 10467448992. Its totient is φ = 1344672000.

The previous prime is 4021013497. The next prime is 4021013501. The reversal of 4021013500 is 53101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021013501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1002499 + ... + 1006501.

It is an arithmetic number, because the mean of its divisors is an integer number (72690618).

Almost surely, 2^4021013500 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 4021013500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5233724496).

4021013500 is an abundant number, since it is smaller than the sum of its proper divisors (6446435492).

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

4021013500 is a wasteful number, since it uses less digits than its factorization.

4021013500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 4021013500 is about 63411.4618976727. The cubic root of 4021013500 is about 1590.1759361241.

Adding to 4021013500 its reverse (53101204), we get a palindrome (4074114704).

The spelling of 4021013500 in words is "four billion, twenty-one million, thirteen thousand, five hundred".