12361980 has 24 divisors (see below), whose sum is σ = 34613712. Its totient is φ = 3296512.

The previous prime is 12361961. The next prime is 12361997. The reversal of 12361980 is 8916321.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102957 + ... + 103076.

It is an arithmetic number, because the mean of its divisors is an integer number (1442238).

Almost surely, 2^12361980 is an apocalyptic number.

12361980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12361980 is an abundant number, since it is smaller than the sum of its proper divisors (22251732).

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

12361980 is a wasteful number, since it uses less digits than its factorization.

12361980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206045 (or 206043 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 12361980 is about 3515.9607506342. The cubic root of 12361980 is about 231.2221023078. Note that the first 3 decimals are identical.

The spelling of 12361980 in words is "twelve million, three hundred sixty-one thousand, nine hundred eighty".