12107940 has 144 divisors (see below), whose sum is σ = 39428928. Its totient is φ = 2757888.

The previous prime is 12107939. The next prime is 12107941. The reversal of 12107940 is 4970121.

It is an interprime number because it is at equal distance from previous prime (12107939) and next prime (12107941).

It is a super-2 number, since 2×12107940² = 293204422087200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12107940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12107941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281559 + ... + 281601.

It is an arithmetic number, because the mean of its divisors is an integer number (273812).

Almost surely, 2^12107940 is an apocalyptic number.

12107940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12107940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19714464).

12107940 is an abundant number, since it is smaller than the sum of its proper divisors (27320988).

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

12107940 is a wasteful number, since it uses less digits than its factorization.

12107940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 85 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 12107940 is about 3479.6465337732. The cubic root of 12107940 is about 229.6272475119.

The spelling of 12107940 in words is "twelve million, one hundred seven thousand, nine hundred forty".