220334749 has 2 divisors, whose sum is σ = 220334750. Its totient is φ = 220334748.

The previous prime is 220334729. The next prime is 220334753. The reversal of 220334749 is 947433022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207504025 + 12830724 = 14405^2 + 3582^2 .

It is a cyclic number.

It is not a de Polignac number, because 220334749 - 2⁹ = 220334237 is a prime.

It is equal to p_12139882 and since 220334749 and 12139882 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220334729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110167374 + 110167375.

It is an arithmetic number, because the mean of its divisors is an integer number (110167375).

Almost surely, 2^220334749 is an apocalyptic number.

It is an amenable number.

220334749 is a deficient number, since it is larger than the sum of its proper divisors (1).

220334749 is an equidigital number, since it uses as much as digits as its factorization.

220334749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 220334749 is about 14843.6770713998. The cubic root of 220334749 is about 603.9871028122.

The spelling of 220334749 in words is "two hundred twenty million, three hundred thirty-four thousand, seven hundred forty-nine".