2840266 has 16 divisors (see below), whose sum is σ = 5005728. Its totient is φ = 1191600.

The previous prime is 2840263. The next prime is 2840267. The reversal of 2840266 is 6620482.

It is a super-2 number, since 2×2840266² = 16134221901512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2840261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4680 + ... + 5251.

It is an arithmetic number, because the mean of its divisors is an integer number (312858).

2^2840266 is an apocalyptic number.

2840266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2840266 is a deficient number, since it is larger than the sum of its proper divisors (2165462).

2840266 is a wasteful number, since it uses less digits than its factorization.

2840266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9957.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 2840266 is about 1685.3088737677. The cubic root of 2840266 is about 141.6183961651.

The spelling of 2840266 in words is "two million, eight hundred forty thousand, two hundred sixty-six".