2028913280 has 64 divisors (see below), whose sum is σ = 5135714280. Its totient is φ = 763822080.

The previous prime is 2028913279. The next prime is 2028913291. The reversal of 2028913280 is 823198202.

It can be written as a sum of positive squares in 4 ways, for example, as 1541033536 + 487879744 = 39256^2 + 22088^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 2028913280.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82361 + ... + 104120.

Almost surely, 2^2028913280 is an apocalyptic number.

2028913280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2028913280 is an abundant number, since it is smaller than the sum of its proper divisors (3106801000).

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

2028913280 is a wasteful number, since it uses less digits than its factorization.

2028913280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186517 (or 186505 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2028913280 is about 45043.4599026318. The cubic root of 2028913280 is about 1265.9634335943.

The spelling of 2028913280 in words is "two billion, twenty-eight million, nine hundred thirteen thousand, two hundred eighty".