4023144020 has 36 divisors (see below), whose sum is σ = 9827968500. Its totient is φ = 1379363328.

The previous prime is 4023144019. The next prime is 4023144029. The reversal of 4023144020 is 204413204.

It can be written as a sum of positive squares in 2 ways, for example, as 3107839504 + 915304516 = 55748^2 + 30254^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 4023143983 and 4023144001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4023144029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2051645 + ... + 2053604.

It is an arithmetic number, because the mean of its divisors is an integer number (272999125).

Almost surely, 2^4023144020 is an apocalyptic number.

It is an amenable number.

4023144020 is an abundant number, since it is smaller than the sum of its proper divisors (5804824480).

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

4023144020 is a wasteful number, since it uses less digits than its factorization.

4023144020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105272 (or 4105263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4023144020 is about 63428.2588441461. The cubic root of 4023144020 is about 1590.4567362637.

Adding to 4023144020 its reverse (204413204), we get a palindrome (4227557224).

The spelling of 4023144020 in words is "four billion, twenty-three million, one hundred forty-four thousand, twenty".