1232304140 has 48 divisors (see below), whose sum is σ = 2607897600. Its totient is φ = 489120192.

The previous prime is 1232304119. The next prime is 1232304197. The reversal of 1232304140 is 414032321.

It is a super-2 number, since 2×1232304140² = 3037146986922279200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2572421 + ... + 2572899.

It is an arithmetic number, because the mean of its divisors is an integer number (54331200).

Almost surely, 2^1232304140 is an apocalyptic number.

1232304140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232304140 is an abundant number, since it is smaller than the sum of its proper divisors (1375593460).

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

1232304140 is a wasteful number, since it uses less digits than its factorization.

1232304140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214 (or 1212 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1232304140 is about 35104.1897784296. The cubic root of 1232304140 is about 1072.1098904853.

Adding to 1232304140 its reverse (414032321), we get a palindrome (1646336461).

The spelling of 1232304140 in words is "one billion, two hundred thirty-two million, three hundred four thousand, one hundred forty".