220642346 has 16 divisors (see below), whose sum is σ = 341179776. Its totient is φ = 106959936.

The previous prime is 220642333. The next prime is 220642349. The reversal of 220642346 is 643246022.

220642346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220642349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 911 + ... + 21026.

It is an arithmetic number, because the mean of its divisors is an integer number (21323736).

Almost surely, 2^220642346 is an apocalyptic number.

220642346 is a deficient number, since it is larger than the sum of its proper divisors (120537430).

220642346 is a wasteful number, since it uses less digits than its factorization.

220642346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22093.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 220642346 is about 14854.0346707553. The cubic root of 220642346 is about 604.2680363072.

Adding to 220642346 its reverse (643246022), we get a palindrome (863888368).

The spelling of 220642346 in words is "two hundred twenty million, six hundred forty-two thousand, three hundred forty-six".