223011450 has 144 divisors (see below), whose sum is σ = 647637120. Its totient is φ = 54848640.

The previous prime is 223011413. The next prime is 223011487. The reversal of 223011450 is 54110322.

It is an interprime number because it is at equal distance from previous prime (223011413) and next prime (223011487).

It is a super-2 number, since 2×223011450² = 99468213662205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 299779 + ... + 300521.

It is an arithmetic number, because the mean of its divisors is an integer number (4497480).

Almost surely, 2^223011450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223011450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323818560).

223011450 is an abundant number, since it is smaller than the sum of its proper divisors (424625670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223011450 is a wasteful number, since it uses less digits than its factorization.

223011450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813 (or 805 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 223011450 is about 14933.5678925031. The cubic root of 223011450 is about 606.4230780853.

Adding to 223011450 its reverse (54110322), we get a palindrome (277121772).

The spelling of 223011450 in words is "two hundred twenty-three million, eleven thousand, four hundred fifty".