2665262028 has 96 divisors (see below), whose sum is σ = 7347836160. Its totient is φ = 741277440.

The previous prime is 2665262009. The next prime is 2665262029. The reversal of 2665262028 is 8202625662.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2665262029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302826 + ... + 311502.

It is an arithmetic number, because the mean of its divisors is an integer number (76539960).

Almost surely, 2^2665262028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665262028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3673918080).

2665262028 is an abundant number, since it is smaller than the sum of its proper divisors (4682574132).

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

2665262028 is a wasteful number, since it uses less digits than its factorization.

2665262028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8887 (or 8885 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2665262028 is about 51626.1758025907. The cubic root of 2665262028 is about 1386.4790254245.

The spelling of 2665262028 in words is "two billion, six hundred sixty-five million, two hundred sixty-two thousand, twenty-eight".