2265988 has 18 divisors (see below), whose sum is σ = 4076618. Its totient is φ = 1102080.

The previous prime is 2265979. The next prime is 2266003. The reversal of 2265988 is 8895622.

It can be written as a sum of positive squares in 3 ways, for example, as 186624 + 2079364 = 432^2 + 1442^2 .

It is a super-2 number, since 2×2265988² = 10269403232288, 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 2265988.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6556 + ... + 6892.

2^2265988 is an apocalyptic number.

It is an amenable number.

2265988 is a deficient number, since it is larger than the sum of its proper divisors (1810630).

2265988 is a wasteful number, since it uses less digits than its factorization.

2265988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423 (or 380 counting only the distinct ones).

The product of its digits is 69120, while the sum is 40.

The square root of 2265988 is about 1505.3198995562. The cubic root of 2265988 is about 131.3467108833.

The spelling of 2265988 in words is "two million, two hundred sixty-five thousand, nine hundred eighty-eight".