220312264 has 8 divisors (see below), whose sum is σ = 413085510. Its totient is φ = 110156128.

The previous prime is 220312243. The next prime is 220312271. The reversal of 220312264 is 462213022.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 78464164 = 11910^2 + 8858^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13769509 + ... + 13769524.

Almost surely, 2^220312264 is an apocalyptic number.

It is an amenable number.

220312264 is a deficient number, since it is larger than the sum of its proper divisors (192773246).

220312264 is a wasteful number, since it uses less digits than its factorization.

220312264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27539039 (or 27539035 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 220312264 is about 14842.9196588811. The cubic root of 220312264 is about 603.9665566326.

Adding to 220312264 its reverse (462213022), we get a palindrome (682525286).

The spelling of 220312264 in words is "two hundred twenty million, three hundred twelve thousand, two hundred sixty-four".