223012240 has 40 divisors (see below), whose sum is σ = 565642368. Its totient is φ = 81095040.

The previous prime is 223012219. The next prime is 223012241. The reversal of 223012240 is 42210322.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (223012241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125832 + ... + 127591.

Almost surely, 2^223012240 is an apocalyptic number.

223012240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223012240 is an abundant number, since it is smaller than the sum of its proper divisors (342630128).

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

223012240 is a wasteful number, since it uses less digits than its factorization.

223012240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253447 (or 253441 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 223012240 is about 14933.5943429571. The cubic root of 223012240 is about 606.4237941527.

Adding to 223012240 its reverse (42210322), we get a palindrome (265222562).

The spelling of 223012240 in words is "two hundred twenty-three million, twelve thousand, two hundred forty".