2028892780 has 48 divisors (see below), whose sum is σ = 4526766720. Its totient is φ = 762386688.

The previous prime is 2028892769. The next prime is 2028892787. The reversal of 2028892780 is 872988202.

It is a super-2 number, since 2×2028892780² = 8232811825472256800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2028892780.

It is not an unprimeable number, because it can be changed into a prime (2028892787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25812 + ... + 68731.

It is an arithmetic number, because the mean of its divisors is an integer number (94307640).

Almost surely, 2^2028892780 is an apocalyptic number.

2028892780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028892780 is an abundant number, since it is smaller than the sum of its proper divisors (2497873940).

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

2028892780 is a wasteful number, since it uses less digits than its factorization.

2028892780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94618 (or 94616 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 46.

The square root of 2028892780 is about 45043.2323440492. The cubic root of 2028892780 is about 1265.9591698442.

The spelling of 2028892780 in words is "two billion, twenty-eight million, eight hundred ninety-two thousand, seven hundred eighty".