4023142220 has 48 divisors (see below), whose sum is σ = 8735737248. Its totient is φ = 1555299840.

The previous prime is 4023142181. The next prime is 4023142223. The reversal of 4023142220 is 222413204.

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 = 4023142192 and 4023142201.

It is not an unprimeable number, because it can be changed into a prime (4023142223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64814 + ... + 110666.

It is an arithmetic number, because the mean of its divisors is an integer number (181994526).

Almost surely, 2^4023142220 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 4023142220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4367868624).

4023142220 is an abundant number, since it is smaller than the sum of its proper divisors (4712595028).

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

4023142220 is a wasteful number, since it uses less digits than its factorization.

4023142220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46010 (or 46008 counting only the distinct ones).

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

The square root of 4023142220 is about 63428.2446548854. The cubic root of 4023142220 is about 1590.4564990675.

Adding to 4023142220 its reverse (222413204), we get a palindrome (4245555424).

The spelling of 4023142220 in words is "four billion, twenty-three million, one hundred forty-two thousand, two hundred twenty".