2790269 has 4 divisors (see below), whose sum is σ = 2795196. Its totient is φ = 2785344.

The previous prime is 2790259. The next prime is 2790289. The reversal of 2790269 is 9620972.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 702244 + 2088025 = 838^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2790269 - 2⁴ = 2790253 is a prime.

It is a super-2 number, since 2×2790269² = 15571202184722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2790209) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 2789.

It is an arithmetic number, because the mean of its divisors is an integer number (698799).

2^2790269 is an apocalyptic number.

It is an amenable number.

2790269 is a deficient number, since it is larger than the sum of its proper divisors (4927).

2790269 is an equidigital number, since it uses as much as digits as its factorization.

2790269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 2790269 is about 1670.4098299519. The cubic root of 2790269 is about 140.7825059242.

The spelling of 2790269 in words is "two million, seven hundred ninety thousand, two hundred sixty-nine".