2028002144 has 72 divisors (see below), whose sum is σ = 4715447184. Its totient is φ = 841017600.

The previous prime is 2028002143. The next prime is 2028002177. The reversal of 2028002144 is 4412008202.

It is a happy number.

It is a super-2 number, since 2×2028002144² = 8225585392137193472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028002143) 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, 210554 + ... + 219974.

It is an arithmetic number, because the mean of its divisors is an integer number (65492322).

Almost surely, 2^2028002144 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 2028002144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2357723592).

2028002144 is an abundant number, since it is smaller than the sum of its proper divisors (2687445040).

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

2028002144 is an equidigital number, since it uses as much as digits as its factorization.

2028002144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9500 (or 9461 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 2028002144 is about 45033.3448013802. The cubic root of 2028002144 is about 1265.7739006757.

The spelling of 2028002144 in words is "two billion, twenty-eight million, two thousand, one hundred forty-four".