12361940 has 24 divisors (see below), whose sum is σ = 26514432. Its totient is φ = 4839200.

The previous prime is 12361933. The next prime is 12361949. The reversal of 12361940 is 4916321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12361949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5636 + ... + 7515.

It is an arithmetic number, because the mean of its divisors is an integer number (1104768).

Almost surely, 2^12361940 is an apocalyptic number.

12361940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12361940 is an abundant number, since it is smaller than the sum of its proper divisors (14152492).

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

12361940 is a wasteful number, since it uses less digits than its factorization.

12361940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13207 (or 13205 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 12361940 is about 3515.9550622839. The cubic root of 12361940 is about 231.2218529170.

The spelling of 12361940 in words is "twelve million, three hundred sixty-one thousand, nine hundred forty".