223949472289 has 9 divisors (see below), whose sum is σ = 236366135217. Its totient is φ = 212154139764.

The previous prime is 223949472277. The next prime is 223949472301. The reversal of 223949472289 is 982274949322.

The square root of 223949472289 is 473233.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (223949472277) and next prime (223949472301).

It is not a de Polignac number, because 223949472289 - 2⁷ = 223949472161 is a prime.

It is a super-2 number, since 2×223949472289² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223949472269) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8978974 + ... + 9003880.

It is an arithmetic number, because the mean of its divisors is an integer number (26262903913).

Almost surely, 2^223949472289 is an apocalyptic number.

223949472289 is the 473233-rd square number.

223949472289 is the 236617-th centered octagonal number.

It is an amenable number.

223949472289 is a deficient number, since it is larger than the sum of its proper divisors (12416662928).

223949472289 is an frugal number, since it uses more digits than its factorization.

223949472289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49852 (or 24926 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 61.

The spelling of 223949472289 in words is "two hundred twenty-three billion, nine hundred forty-nine million, four hundred seventy-two thousand, two hundred eighty-nine".