120002028 has 12 divisors (see below), whose sum is σ = 280004760. Its totient is φ = 40000672.

The previous prime is 120002021. The next prime is 120002041. The reversal of 120002028 is 820200021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×120002028² = 28800973448225568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120001998 and 120002016.

It is not an unprimeable number, because it can be changed into a prime (120002021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000073 + ... + 5000096.

It is an arithmetic number, because the mean of its divisors is an integer number (23333730).

Almost surely, 2^120002028 is an apocalyptic number.

It is an amenable number.

120002028 is an abundant number, since it is smaller than the sum of its proper divisors (160002732).

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

120002028 is a wasteful number, since it uses less digits than its factorization.

120002028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000176 (or 10000174 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 120002028 is about 10954.5437148245. The cubic root of 120002028 is about 493.2451934494.

Adding to 120002028 its reverse (820200021), we get a palindrome (940202049).

It can be divided in two parts, 12000 and 2028, that added together give a triangular number (14028 = T₁₆₇).

The spelling of 120002028 in words is "one hundred twenty million, two thousand, twenty-eight".