222638655 has 32 divisors (see below), whose sum is σ = 374054400. Its totient is φ = 112920192.

The previous prime is 222638639. The next prime is 222638677. The reversal of 222638655 is 556836222.

It is not a de Polignac number, because 222638655 - 2⁴ = 222638639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25326 + ... + 32964.

It is an arithmetic number, because the mean of its divisors is an integer number (11689200).

Almost surely, 2^222638655 is an apocalyptic number.

222638655 is a deficient number, since it is larger than the sum of its proper divisors (151415745).

222638655 is a wasteful number, since it uses less digits than its factorization.

222638655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its digits is 172800, while the sum is 39.

The square root of 222638655 is about 14921.0808924823. The cubic root of 222638655 is about 606.0849824724.

The spelling of 222638655 in words is "two hundred twenty-two million, six hundred thirty-eight thousand, six hundred fifty-five".