2272649 has 2 divisors, whose sum is σ = 2272650. Its totient is φ = 2272648.

The previous prime is 2272631. The next prime is 2272657. The reversal of 2272649 is 9462722.

2272649 is an esthetic number in base 14, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 1600 = 1507^2 + 40^2 .

It is a cyclic number.

It is not a de Polignac number, because 2272649 - 2¹⁶ = 2207113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2272619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136324 + 1136325.

It is an arithmetic number, because the mean of its divisors is an integer number (1136325).

2^2272649 is an apocalyptic number.

It is an amenable number.

2272649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2272649 is an equidigital number, since it uses as much as digits as its factorization.

2272649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 2272649 is about 1507.5307625385. The cubic root of 2272649 is about 131.4752853455.

The spelling of 2272649 in words is "two million, two hundred seventy-two thousand, six hundred forty-nine".