2909410421 has 4 divisors (see below), whose sum is σ = 2922115500. Its totient is φ = 2896705344.

The previous prime is 2909410417. The next prime is 2909410429. The reversal of 2909410421 is 1240149092.

2909410421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1839466321 + 1069944100 = 42889^2 + 32710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2909410421 - 2² = 2909410417 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 (2909410429) 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, 6352196 + ... + 6352653.

It is an arithmetic number, because the mean of its divisors is an integer number (730528875).

Almost surely, 2^2909410421 is an apocalyptic number.

It is an amenable number.

2909410421 is a deficient number, since it is larger than the sum of its proper divisors (12705079).

2909410421 is a wasteful number, since it uses less digits than its factorization.

2909410421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12705078.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2909410421 is about 53938.9508704053. The cubic root of 2909410421 is about 1427.5839720857.

The spelling of 2909410421 in words is "two billion, nine hundred nine million, four hundred ten thousand, four hundred twenty-one".