2662261 has 16 divisors (see below), whose sum is σ = 3295360. Its totient is φ = 2099520.

The previous prime is 2662211. The next prime is 2662271. The reversal of 2662261 is 1622662.

2662261 = T₄₉₃ + T₄₉₄ + ... + T₅₁₃.

It is a 8-Lehmer number, since φ(2662261) divides (2662261-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 2662261 - 2⁷ = 2662133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2662201) 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 15 ways as a sum of consecutive naturals, for example, 4651 + ... + 5191.

It is an arithmetic number, because the mean of its divisors is an integer number (205960).

2^2662261 is an apocalyptic number.

It is an amenable number.

2662261 is a deficient number, since it is larger than the sum of its proper divisors (633099).

2662261 is a wasteful number, since it uses less digits than its factorization.

2662261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 1728, while the sum is 25.

The square root of 2662261 is about 1631.6436498206. The cubic root of 2662261 is about 138.5958448086.

The spelling of 2662261 in words is "two million, six hundred sixty-two thousand, two hundred sixty-one".