2265298128 has 60 divisors (see below), whose sum is σ = 6372614820. Its totient is φ = 751177728.

The previous prime is 2265298067. The next prime is 2265298153. The reversal of 2265298128 is 8218925622.

2265298128 is a `hidden beast` number, since 2 + 26 + 529 + 81 + 28 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1195223184 + 1070074944 = 34572^2 + 32712^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12963 + ... + 68546.

It is an arithmetic number, because the mean of its divisors is an integer number (106210247).

Almost surely, 2^2265298128 is an apocalyptic number.

It is an amenable number.

2265298128 is an abundant number, since it is smaller than the sum of its proper divisors (4107316692).

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

2265298128 is a wasteful number, since it uses less digits than its factorization.

2265298128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81716 (or 81707 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 2265298128 is about 47595.1481560883. The cubic root of 2265298128 is about 1313.3338018385. Note that the first 3 decimals are identical.

The spelling of 2265298128 in words is "two billion, two hundred sixty-five million, two hundred ninety-eight thousand, one hundred twenty-eight".