222890705 has 8 divisors (see below), whose sum is σ = 272515752. Its totient is φ = 174947968.

The previous prime is 222890699. The next prime is 222890753. The reversal of 222890705 is 507098222.

It can be written as a sum of positive squares in 4 ways, for example, as 16192576 + 206698129 = 4024^2 + 14377^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222890705 - 2⁶ = 222890641 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420284 + ... + 420813.

It is an arithmetic number, because the mean of its divisors is an integer number (34064469).

Almost surely, 2^222890705 is an apocalyptic number.

It is an amenable number.

222890705 is a deficient number, since it is larger than the sum of its proper divisors (49625047).

222890705 is an equidigital number, since it uses as much as digits as its factorization.

222890705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841155.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 222890705 is about 14929.5246073008. The cubic root of 222890705 is about 606.3136131924.

The spelling of 222890705 in words is "two hundred twenty-two million, eight hundred ninety thousand, seven hundred five".