220947448 has 16 divisors (see below), whose sum is σ = 421299000. Its totient is φ = 108601056.

The previous prime is 220947427. The next prime is 220947449. The reversal of 220947448 is 844749022.

It is a self number, because there is not a number n which added to its sum of digits gives 220947448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220947449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233583 + ... + 234526.

Almost surely, 2^220947448 is an apocalyptic number.

It is an amenable number.

220947448 is a deficient number, since it is larger than the sum of its proper divisors (200351552).

220947448 is a wasteful number, since it uses less digits than its factorization.

220947448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468174 (or 468170 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 220947448 is about 14864.3011271973. The cubic root of 220947448 is about 604.5464332641.

The spelling of 220947448 in words is "two hundred twenty million, nine hundred forty-seven thousand, four hundred forty-eight".