2790205 has 16 divisors (see below), whose sum is σ = 3697344. Its totient is φ = 2004480.

The previous prime is 2790197. The next prime is 2790209. The reversal of 2790205 is 5020972.

It is not a de Polignac number, because 2790205 - 2³ = 2790197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2790205.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5074 + ... + 5596.

It is an arithmetic number, because the mean of its divisors is an integer number (231084).

2^2790205 is an apocalyptic number.

It is an amenable number.

2790205 is a deficient number, since it is larger than the sum of its proper divisors (907139).

2790205 is a wasteful number, since it uses less digits than its factorization.

2790205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 2790205 is about 1670.3906728667. The cubic root of 2790205 is about 140.7814295465.

The spelling of 2790205 in words is "two million, seven hundred ninety thousand, two hundred five".