220466642 has 32 divisors (see below), whose sum is σ = 395176320. Its totient is φ = 91060480.

The previous prime is 220466641. The next prime is 220466647. The reversal of 220466642 is 246664022.

It is a junction number, because it is equal to n+sod(n) for n = 220466599 and 220466608.

It is not an unprimeable number, because it can be changed into a prime (220466641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (12349260).

Almost surely, 2^220466642 is an apocalyptic number.

220466642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220466642 is a deficient number, since it is larger than the sum of its proper divisors (174709678).

220466642 is a wasteful number, since it uses less digits than its factorization.

220466642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20386.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 220466642 is about 14848.1191401470. The cubic root of 220466642 is about 604.1075948988.

The spelling of 220466642 in words is "two hundred twenty million, four hundred sixty-six thousand, six hundred forty-two".