2404272121 has 4 divisors (see below), whose sum is σ = 2407448932. Its totient is φ = 2401095312.

The previous prime is 2404272109. The next prime is 2404272127. The reversal of 2404272121 is 1212724042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2127515625 + 276756496 = 46125^2 + 16636^2 .

It is a cyclic number.

It is not a de Polignac number, because 2404272121 - 2⁷ = 2404271993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2404272127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1587270 + ... + 1588783.

It is an arithmetic number, because the mean of its divisors is an integer number (601862233).

Almost surely, 2^2404272121 is an apocalyptic number.

It is an amenable number.

2404272121 is a deficient number, since it is larger than the sum of its proper divisors (3176811).

2404272121 is an equidigital number, since it uses as much as digits as its factorization.

2404272121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176810.

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2404272121 is about 49033.3776217792. The cubic root of 2404272121 is about 1339.6598455307.

Adding to 2404272121 its reverse (1212724042), we get a palindrome (3616996163).

The spelling of 2404272121 in words is "two billion, four hundred four million, two hundred seventy-two thousand, one hundred twenty-one".