2446090721 has 2 divisors, whose sum is σ = 2446090722. Its totient is φ = 2446090720.

The previous prime is 2446090711. The next prime is 2446090729. The reversal of 2446090721 is 1270906442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2297860096 + 148230625 = 47936^2 + 12175^2 .

It is a cyclic number.

It is not a de Polignac number, because 2446090721 - 2²² = 2441896417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2446090729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223045360 + 1223045361.

It is an arithmetic number, because the mean of its divisors is an integer number (1223045361).

Almost surely, 2^2446090721 is an apocalyptic number.

It is an amenable number.

2446090721 is a deficient number, since it is larger than the sum of its proper divisors (1).

2446090721 is an equidigital number, since it uses as much as digits as its factorization.

2446090721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 2446090721 is about 49457.9692365144. The cubic root of 2446090721 is about 1347.3823480428.

The spelling of 2446090721 in words is "two billion, four hundred forty-six million, ninety thousand, seven hundred twenty-one".