2028697888 has 96 divisors (see below), whose sum is σ = 4810530816. Its totient is φ = 823350528.

The previous prime is 2028697861. The next prime is 2028697921. The reversal of 2028697888 is 8887968202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528745 + ... + 532567.

It is an arithmetic number, because the mean of its divisors is an integer number (50109696).

Almost surely, 2^2028697888 is an apocalyptic number.

2028697888 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2028697888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405265408).

2028697888 is an abundant number, since it is smaller than the sum of its proper divisors (2781832928).

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

2028697888 is a wasteful number, since it uses less digits than its factorization.

2028697888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966 (or 3958 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 58.

The square root of 2028697888 is about 45041.0689038349. The cubic root of 2028697888 is about 1265.9186332492.

The spelling of 2028697888 in words is "two billion, twenty-eight million, six hundred ninety-seven thousand, eight hundred eighty-eight".