2413681 has 4 divisors (see below), whose sum is σ = 2419200. Its totient is φ = 2408164.

The previous prime is 2413679. The next prime is 2413693. The reversal of 2413681 is 1863142.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1863142 = 2 ⋅931571.

It is a cyclic number.

It is not a de Polignac number, because 2413681 - 2¹ = 2413679 is a prime.

It is a super-2 number, since 2×2413681² = 11651711939522, which contains 22 as substring.

It is a Duffinian number.

2413681 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2413601) 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, 2041 + ... + 2998.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

2^2413681 is an apocalyptic number.

It is an amenable number.

2413681 is a deficient number, since it is larger than the sum of its proper divisors (5519).

2413681 is an equidigital number, since it uses as much as digits as its factorization.

2413681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5518.

The product of its digits is 1152, while the sum is 25.

The square root of 2413681 is about 1553.6025875365. The cubic root of 2413681 is about 134.1405112567.

The spelling of 2413681 in words is "two million, four hundred thirteen thousand, six hundred eighty-one".