220774441 has 2 divisors, whose sum is σ = 220774442. Its totient is φ = 220774440.

The previous prime is 220774409. The next prime is 220774457. The reversal of 220774441 is 144477022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189860841 + 30913600 = 13779^2 + 5560^2 .

It is a cyclic number.

It is not a de Polignac number, because 220774441 - 2⁵ = 220774409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220777441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110387220 + 110387221.

It is an arithmetic number, because the mean of its divisors is an integer number (110387221).

Almost surely, 2^220774441 is an apocalyptic number.

It is an amenable number.

220774441 is a deficient number, since it is larger than the sum of its proper divisors (1).

220774441 is an equidigital number, since it uses as much as digits as its factorization.

220774441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 220774441 is about 14858.4804404757. The cubic root of 220774441 is about 604.3886007469.

The spelling of 220774441 in words is "two hundred twenty million, seven hundred seventy-four thousand, four hundred forty-one".