2665288 has 8 divisors (see below), whose sum is σ = 4997430. Its totient is φ = 1332640.

The previous prime is 2665261. The next prime is 2665291. The reversal of 2665288 is 8825662.

It can be written as a sum of positive squares in only one way, i.e., 2022084 + 643204 = 1422^2 + 802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166573 + ... + 166588.

2^2665288 is an apocalyptic number.

It is an amenable number.

2665288 is a deficient number, since it is larger than the sum of its proper divisors (2332142).

2665288 is a wasteful number, since it uses less digits than its factorization.

2665288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333167 (or 333163 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The square root of 2665288 is about 1632.5709785489. The cubic root of 2665288 is about 138.6483528986.

The spelling of 2665288 in words is "two million, six hundred sixty-five thousand, two hundred eighty-eight".