224722705 has 4 divisors (see below), whose sum is σ = 269667252. Its totient is φ = 179778160.

The previous prime is 224722699. The next prime is 224722723. The reversal of 224722705 is 507227422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136212241 + 88510464 = 11671^2 + 9408^2 .

It is not a de Polignac number, because 224722705 - 2³ = 224722697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22472266 + ... + 22472275.

It is an arithmetic number, because the mean of its divisors is an integer number (67416813).

Almost surely, 2^224722705 is an apocalyptic number.

It is an amenable number.

224722705 is a deficient number, since it is larger than the sum of its proper divisors (44944547).

224722705 is an equidigital number, since it uses as much as digits as its factorization.

224722705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44944546.

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 224722705 is about 14990.7539837061. The cubic root of 224722705 is about 607.9702354788.

The spelling of 224722705 in words is "two hundred twenty-four million, seven hundred twenty-two thousand, seven hundred five".