220995386 has 4 divisors (see below), whose sum is σ = 331493082. Its totient is φ = 110497692.

The previous prime is 220995377. The next prime is 220995407. The reversal of 220995386 is 683599022.

220995386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 195300625 + 25694761 = 13975^2 + 5069^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55248845 + ... + 55248848.

Almost surely, 2^220995386 is an apocalyptic number.

220995386 is a deficient number, since it is larger than the sum of its proper divisors (110497696).

220995386 is a wasteful number, since it uses less digits than its factorization.

220995386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110497695.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 220995386 is about 14865.9135608949. The cubic root of 220995386 is about 604.5901520329.

The spelling of 220995386 in words is "two hundred twenty million, nine hundred ninety-five thousand, three hundred eighty-six".