4028423020 has 144 divisors (see below), whose sum is σ = 9357949440. Its totient is φ = 1455308800.

The previous prime is 4028422987. The next prime is 4028423029. The reversal of 4028423020 is 203248204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4028423029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21091125 + ... + 21091315.

It is an arithmetic number, because the mean of its divisors is an integer number (64985760).

Almost surely, 2^4028423020 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 4028423020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4678974720).

4028423020 is an abundant number, since it is smaller than the sum of its proper divisors (5329526420).

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

4028423020 is a wasteful number, since it uses less digits than its factorization.

4028423020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4028423020 is about 63469.8591458970. The cubic root of 4028423020 is about 1591.1520756501.

The spelling of 4028423020 in words is "four billion, twenty-eight million, four hundred twenty-three thousand, twenty".