1223330140 has 24 divisors (see below), whose sum is σ = 2570182272. Its totient is φ = 489105600.

The previous prime is 1223330123. The next prime is 1223330189. The reversal of 1223330140 is 410333221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34165 + ... + 60115.

It is an arithmetic number, because the mean of its divisors is an integer number (107090928).

Almost surely, 2^1223330140 is an apocalyptic number.

1223330140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223330140 is an abundant number, since it is smaller than the sum of its proper divisors (1346852132).

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

1223330140 is a wasteful number, since it uses less digits than its factorization.

1223330140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28317 (or 28315 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1223330140 is about 34976.1367220567. The cubic root of 1223330140 is about 1069.5010746412.

Adding to 1223330140 its reverse (410333221), we get a palindrome (1633663361).

The spelling of 1223330140 in words is "one billion, two hundred twenty-three million, three hundred thirty thousand, one hundred forty".