2028111672 has 32 divisors (see below), whose sum is σ = 5071384080. Its totient is φ = 675889920.

The previous prime is 2028111671. The next prime is 2028111703. The reversal of 2028111672 is 2761118202.

It is a super-2 number, since 2×2028111672² = 8226473908205271168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028111671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203772 + ... + 213492.

Almost surely, 2^2028111672 is an apocalyptic number.

It is an amenable number.

2028111672 is an abundant number, since it is smaller than the sum of its proper divisors (3043272408).

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

2028111672 is a wasteful number, since it uses less digits than its factorization.

2028111672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18423 (or 18419 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 2028111672 is about 45034.5608616316. The cubic root of 2028111672 is about 1265.7966875004.

Adding to 2028111672 its reverse (2761118202), we get a palindrome (4789229874).

The spelling of 2028111672 in words is "two billion, twenty-eight million, one hundred eleven thousand, six hundred seventy-two".