2466581 has 8 divisors (see below), whose sum is σ = 2812824. Its totient is φ = 2142720.

The previous prime is 2466571. The next prime is 2466587. The reversal of 2466581 is 1856642.

It can be written as a sum of positive squares in 4 ways, for example, as 1681 + 2464900 = 41^2 + 1570^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2466581 - 2⁶ = 2466517 is a prime.

It is a super-2 number, since 2×2466581² = 12168043659122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2466587) 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, 5360 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (351603).

2^2466581 is an apocalyptic number.

It is an amenable number.

2466581 is a deficient number, since it is larger than the sum of its proper divisors (346243).

2466581 is a wasteful number, since it uses less digits than its factorization.

2466581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191.

The product of its digits is 11520, while the sum is 32.

The square root of 2466581 is about 1570.5352590757. The cubic root of 2466581 is about 135.1134117849.

The spelling of 2466581 in words is "two million, four hundred sixty-six thousand, five hundred eighty-one".