12379880 has 32 divisors (see below), whose sum is σ = 28031400. Its totient is φ = 4920576.

The previous prime is 12379841. The next prime is 12379883. The reversal of 12379880 is 8897321.

It can be written as a sum of positive squares in 4 ways, for example, as 12348196 + 31684 = 3514^2 + 178^2 .

It is a super-2 number, since 2×12379880² = 306522857628800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12379883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6026 + ... + 7814.

Almost surely, 2^12379880 is an apocalyptic number.

12379880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12379880 is an abundant number, since it is smaller than the sum of its proper divisors (15651520).

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

12379880 is a wasteful number, since it uses less digits than its factorization.

12379880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973 (or 1969 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 12379880 is about 3518.5053644978. The cubic root of 12379880 is about 231.3336507695. Note that the first 3 decimals are identical.

The spelling of 12379880 in words is "twelve million, three hundred seventy-nine thousand, eight hundred eighty".