220618448 has 10 divisors (see below), whose sum is σ = 427448274. Its totient is φ = 110309216.

The previous prime is 220618429. The next prime is 220618459. The reversal of 220618448 is 844816022.

220618448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 216325264 + 4293184 = 14708^2 + 2072^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6894311 + ... + 6894342.

Almost surely, 2^220618448 is an apocalyptic number.

It is an amenable number.

220618448 is a deficient number, since it is larger than the sum of its proper divisors (206829826).

220618448 is a wasteful number, since it uses less digits than its factorization.

220618448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13788661 (or 13788655 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 220618448 is about 14853.2302210664. The cubic root of 220618448 is about 604.2462192215.

The spelling of 220618448 in words is "two hundred twenty million, six hundred eighteen thousand, four hundred forty-eight".