2404623121 has 4 divisors (see below), whose sum is σ = 2407641012. Its totient is φ = 2401605232.

The previous prime is 2404623103. The next prime is 2404623127. The reversal of 2404623121 is 1213264042.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1213264042 = 2 ⋅606632021.

It can be written as a sum of positive squares in 2 ways, for example, as 1012512400 + 1392110721 = 31820^2 + 37311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2404623121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2404623127) 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, 1507750 + ... + 1509343.

It is an arithmetic number, because the mean of its divisors is an integer number (601910253).

Almost surely, 2^2404623121 is an apocalyptic number.

It is an amenable number.

2404623121 is a deficient number, since it is larger than the sum of its proper divisors (3017891).

2404623121 is an equidigital number, since it uses as much as digits as its factorization.

2404623121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3017890.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 2404623121 is about 49036.9566857488. The cubic root of 2404623121 is about 1339.7250347303.

Adding to 2404623121 its reverse (1213264042), we get a palindrome (3617887163).

The spelling of 2404623121 in words is "two billion, four hundred four million, six hundred twenty-three thousand, one hundred twenty-one".