1223230340 has 48 divisors (see below), whose sum is σ = 2610023808. Its totient is φ = 481469184.

The previous prime is 1223230297. The next prime is 1223230343. The reversal of 1223230340 is 430323221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1223230343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 938129 + ... + 939431.

It is an arithmetic number, because the mean of its divisors is an integer number (54375496).

Almost surely, 2^1223230340 is an apocalyptic number.

1223230340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223230340 is an abundant number, since it is smaller than the sum of its proper divisors (1386793468).

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

1223230340 is a wasteful number, since it uses less digits than its factorization.

1223230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1223230340 is about 34974.7100059457. The cubic root of 1223230340 is about 1069.4719903391.

Adding to 1223230340 its reverse (430323221), we get a palindrome (1653553561).

The spelling of 1223230340 in words is "one billion, two hundred twenty-three million, two hundred thirty thousand, three hundred forty".