2261558 has 12 divisors (see below), whose sum is σ = 3673908. Its totient is φ = 1043640.

The previous prime is 2261557. The next prime is 2261569. The reversal of 2261558 is 8551622.

It is a super-2 number, since 2×2261558² = 10229289174728, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2261558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2261557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3008 + ... + 3683.

It is an arithmetic number, because the mean of its divisors is an integer number (306159).

2^2261558 is an apocalyptic number.

2261558 is a deficient number, since it is larger than the sum of its proper divisors (1412350).

2261558 is a wasteful number, since it uses less digits than its factorization.

2261558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719 (or 6706 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 2261558 is about 1503.8477316537. The cubic root of 2261558 is about 131.2610608970.

Subtracting 2261558 from its reverse (8551622), we obtain a square (6290064 = 2508²).

The spelling of 2261558 in words is "two million, two hundred sixty-one thousand, five hundred fifty-eight".