2409081 has 4 divisors (see below), whose sum is σ = 3212112. Its totient is φ = 1606052.

The previous prime is 2409061. The next prime is 2409091. The reversal of 2409081 is 1809042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2409081 - 2⁹ = 2408569 is a prime.

It is a super-2 number, since 2×2409081² = 11607342529122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2409031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401511 + ... + 401516.

It is an arithmetic number, because the mean of its divisors is an integer number (803028).

2^2409081 is an apocalyptic number.

It is an amenable number.

2409081 is a deficient number, since it is larger than the sum of its proper divisors (803031).

2409081 is an equidigital number, since it uses as much as digits as its factorization.

2409081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803030.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2409081 is about 1552.1214514335. The cubic root of 2409081 is about 134.0552419444.

The spelling of 2409081 in words is "two million, four hundred nine thousand, eighty-one".