2275840421 has 2 divisors, whose sum is σ = 2275840422. Its totient is φ = 2275840420.

The previous prime is 2275840397. The next prime is 2275840487. The reversal of 2275840421 is 1240485722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1998984100 + 276856321 = 44710^2 + 16639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2275840421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2275840921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1137920210 + 1137920211.

It is an arithmetic number, because the mean of its divisors is an integer number (1137920211).

Almost surely, 2^2275840421 is an apocalyptic number.

It is an amenable number.

2275840421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2275840421 is an equidigital number, since it uses as much as digits as its factorization.

2275840421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 2275840421 is about 47705.7692632663. The cubic root of 2275840421 is about 1315.3679898475.

The spelling of 2275840421 in words is "two billion, two hundred seventy-five million, eight hundred forty thousand, four hundred twenty-one".