2909419421 has 4 divisors (see below), whose sum is σ = 2911075200. Its totient is φ = 2907763644.

The previous prime is 2909419379. The next prime is 2909419451. The reversal of 2909419421 is 1249149092.

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.

It is a cyclic number.

It is not a de Polignac number, because 2909419421 - 2²² = 2905225117 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 (2909419451) 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, 825251 + ... + 828768.

It is an arithmetic number, because the mean of its divisors is an integer number (727768800).

Almost surely, 2^2909419421 is an apocalyptic number.

It is an amenable number.

2909419421 is a deficient number, since it is larger than the sum of its proper divisors (1655779).

2909419421 is a wasteful number, since it uses less digits than its factorization.

2909419421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655778.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 2909419421 is about 53939.0342979924. The cubic root of 2909419421 is about 1427.5854441184.

The spelling of 2909419421 in words is "two billion, nine hundred nine million, four hundred nineteen thousand, four hundred twenty-one".