12430140 has 24 divisors (see below), whose sum is σ = 34804560. Its totient is φ = 3314688.

The previous prime is 12430133. The next prime is 12430181. The reversal of 12430140 is 4103421.

12430140 = 1243² + 1244² + ... + 1250².

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 103525 + ... + 103644.

It is an arithmetic number, because the mean of its divisors is an integer number (1450190).

Almost surely, 2^12430140 is an apocalyptic number.

12430140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12430140 is an abundant number, since it is smaller than the sum of its proper divisors (22374420).

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

12430140 is a wasteful number, since it uses less digits than its factorization.

12430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207181 (or 207179 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12430140 is about 3525.6403673659. The cubic root of 12430140 is about 231.6462852061.

Adding to 12430140 its reverse (4103421), we get a palindrome (16533561).

The spelling of 12430140 in words is "twelve million, four hundred thirty thousand, one hundred forty".