2421306906 has 64 divisors (see below), whose sum is σ = 5280992640. Its totient is φ = 737085440.

The previous prime is 2421306887. The next prime is 2421306917. The reversal of 2421306906 is 6096031242.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822385 + ... + 825323.

It is an arithmetic number, because the mean of its divisors is an integer number (82515510).

Almost surely, 2^2421306906 is an apocalyptic number.

2421306906 is an abundant number, since it is smaller than the sum of its proper divisors (2859685734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2421306906 is a wasteful number, since it uses less digits than its factorization.

2421306906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3199.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 2421306906 is about 49206.7770332502. Note that the first 3 decimals coincide. The cubic root of 2421306906 is about 1342.8163284702.

The spelling of 2421306906 in words is "two billion, four hundred twenty-one million, three hundred six thousand, nine hundred six".