2404908891 has 24 divisors (see below), whose sum is σ = 4330919424. Its totient is φ = 1249302960.

The previous prime is 2404908889. The next prime is 2404908929. The reversal of 2404908891 is 1988094042.

It is not a de Polignac number, because 2404908891 - 2¹ = 2404908889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2404908841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1734451 + ... + 1735836.

It is an arithmetic number, because the mean of its divisors is an integer number (180454976).

Almost surely, 2^2404908891 is an apocalyptic number.

2404908891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2404908891 is a deficient number, since it is larger than the sum of its proper divisors (1926010533).

2404908891 is a wasteful number, since it uses less digits than its factorization.

2404908891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3470311 (or 3470308 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 2404908891 is about 49039.8704219332. The cubic root of 2404908891 is about 1339.7781044545.

The spelling of 2404908891 in words is "two billion, four hundred four million, nine hundred eight thousand, eight hundred ninety-one".