220202449 has 2 divisors, whose sum is σ = 220202450. Its totient is φ = 220202448.

The previous prime is 220202443. The next prime is 220202461. The reversal of 220202449 is 944202022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147185424 + 73017025 = 12132^2 + 8545^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202449 - 2⁹ = 220201937 is a prime.

It is not a weakly prime, because it can be changed into another prime (220202443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101224 + 110101225.

It is an arithmetic number, because the mean of its divisors is an integer number (110101225).

Almost surely, 2^220202449 is an apocalyptic number.

It is an amenable number.

220202449 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202449 is an equidigital number, since it uses as much as digits as its factorization.

220202449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 220202449 is about 14839.2199592836. The cubic root of 220202449 is about 603.8661905898.

The spelling of 220202449 in words is "two hundred twenty million, two hundred two thousand, four hundred forty-nine".