2261186 has 8 divisors (see below), whose sum is σ = 3398220. Its totient is φ = 1128448.

The previous prime is 2261177. The next prime is 2261197. The reversal of 2261186 is 6811622.

It can be written as a sum of positive squares in 2 ways, for example, as 1907161 + 354025 = 1381^2 + 595^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2261186² = 10225924253192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250 + ... + 2466.

2^2261186 is an apocalyptic number.

2261186 is a deficient number, since it is larger than the sum of its proper divisors (1137034).

2261186 is a wasteful number, since it uses less digits than its factorization.

2261186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2148.

The product of its digits is 1152, while the sum is 26.

The square root of 2261186 is about 1503.7240438325. The cubic root of 2261186 is about 131.2538635295.

The spelling of 2261186 in words is "two million, two hundred sixty-one thousand, one hundred eighty-six".