2770256 has 10 divisors (see below), whose sum is σ = 5367402. Its totient is φ = 1385120.

The previous prime is 2770241. The next prime is 2770259. The reversal of 2770256 is 6520772.

2770256 = T₄₀₀ + T₄₀₁ + ... + T₄₃₁.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 80656 = 1640^2 + 284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2770259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86555 + ... + 86586.

2^2770256 is an apocalyptic number.

It is an amenable number.

2770256 is a deficient number, since it is larger than the sum of its proper divisors (2597146).

2770256 is a wasteful number, since it uses less digits than its factorization.

2770256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173149 (or 173143 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 2770256 is about 1664.4086036788. The cubic root of 2770256 is about 140.4451139238.

The spelling of 2770256 in words is "two million, seven hundred seventy thousand, two hundred fifty-six".