220556346 has 8 divisors (see below), whose sum is σ = 441112704. Its totient is φ = 73518780.

The previous prime is 220556341. The next prime is 220556359. The reversal of 220556346 is 643655022.

220556346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

220556346 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (220556341) 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, 18379690 + ... + 18379701.

It is an arithmetic number, because the mean of its divisors is an integer number (55139088).

Almost surely, 2^220556346 is an apocalyptic number.

220556346 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220556346 is a wasteful number, since it uses less digits than its factorization.

220556346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36759396.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 220556346 is about 14851.1395522364. The cubic root of 220556346 is about 604.1895173749.

The spelling of 220556346 in words is "two hundred twenty million, five hundred fifty-six thousand, three hundred forty-six".