12302140 has 12 divisors (see below), whose sum is σ = 25834536. Its totient is φ = 4920848.

The previous prime is 12302089. The next prime is 12302141. The reversal of 12302140 is 4120321.

It is a self number, because there is not a number n which added to its sum of digits gives 12302140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12302141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307534 + ... + 307573.

It is an arithmetic number, because the mean of its divisors is an integer number (2152878).

Almost surely, 2^12302140 is an apocalyptic number.

12302140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12302140 is an abundant number, since it is smaller than the sum of its proper divisors (13532396).

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

12302140 is a wasteful number, since it uses less digits than its factorization.

12302140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615116 (or 615114 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12302140 is about 3507.4406623634. The cubic root of 12302140 is about 230.8484103793.

Adding to 12302140 its reverse (4120321), we get a palindrome (16422461).

The spelling of 12302140 in words is "twelve million, three hundred two thousand, one hundred forty".