223268138 has 16 divisors (see below), whose sum is σ = 355052544. Its totient is φ = 105112080.

The previous prime is 223268137. The next prime is 223268167. The reversal of 223268138 is 831862322.

It is a super-3 number, since 3×223268138³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 223268098 and 223268107.

It is not an unprimeable number, because it can be changed into a prime (223268131) 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, 46370 + ... + 50957.

It is an arithmetic number, because the mean of its divisors is an integer number (22190784).

Almost surely, 2^223268138 is an apocalyptic number.

223268138 is a deficient number, since it is larger than the sum of its proper divisors (131784406).

223268138 is a wasteful number, since it uses less digits than its factorization.

223268138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97397.

The product of its digits is 27648, while the sum is 35.

The square root of 223268138 is about 14942.1597501834. The cubic root of 223268138 is about 606.6556548472.

The spelling of 223268138 in words is "two hundred twenty-three million, two hundred sixty-eight thousand, one hundred thirty-eight".