2404661 has 8 divisors (see below), whose sum is σ = 2807040. Its totient is φ = 2017008.

The previous prime is 2404643. The next prime is 2404669. The reversal of 2404661 is 1664042.

It is a happy number.

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

It is not a de Polignac number, because 2404661 - 2¹⁴ = 2388277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2404669) 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, 3326 + ... + 3983.

It is an arithmetic number, because the mean of its divisors is an integer number (350880).

2^2404661 is an apocalyptic number.

It is an amenable number.

2404661 is a deficient number, since it is larger than the sum of its proper divisors (402379).

2404661 is an equidigital number, since it uses as much as digits as its factorization.

2404661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2404661 is about 1550.6969400886. The cubic root of 2404661 is about 133.9732069399.

The spelling of 2404661 in words is "two million, four hundred four thousand, six hundred sixty-one".