2541986 has 8 divisors (see below), whose sum is σ = 3885084. Its totient is φ = 1246960.

The previous prime is 2541967. The next prime is 2541997. The reversal of 2541986 is 6891452.

It can be written as a sum of positive squares in 2 ways, for example, as 2356225 + 185761 = 1535^2 + 431^2 .

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

It is a Curzon 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, 11885 + ... + 12096.

2^2541986 is an apocalyptic number.

2541986 is a deficient number, since it is larger than the sum of its proper divisors (1343098).

2541986 is a wasteful number, since it uses less digits than its factorization.

2541986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036.

The product of its digits is 17280, while the sum is 35.

The square root of 2541986 is about 1594.3606869212. The cubic root of 2541986 is about 136.4764502929.

The spelling of 2541986 in words is "two million, five hundred forty-one thousand, nine hundred eighty-six".