220530466 has 32 divisors (see below), whose sum is σ = 370137600. Its totient is φ = 98439120.

The previous prime is 220530451. The next prime is 220530467. The reversal of 220530466 is 664035022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220530467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135405 + ... + 137023.

It is an arithmetic number, because the mean of its divisors is an integer number (11566800).

Almost surely, 2^220530466 is an apocalyptic number.

220530466 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

220530466 is a deficient number, since it is larger than the sum of its proper divisors (149607134).

220530466 is a wasteful number, since it uses less digits than its factorization.

220530466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 220530466 is about 14850.2682130661. The cubic root of 220530466 is about 604.1658846590.

Adding to 220530466 its reverse (664035022), we get a palindrome (884565488).

The spelling of 220530466 in words is "two hundred twenty million, five hundred thirty thousand, four hundred sixty-six".