12490380 has 144 divisors (see below), whose sum is σ = 45287424. Its totient is φ = 2724480.

The previous prime is 12490369. The next prime is 12490397. The reversal of 12490380 is 8309421.

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 47 ways as a sum of consecutive naturals, for example, 28765 + ... + 29195.

It is an arithmetic number, because the mean of its divisors is an integer number (314496).

Almost surely, 2^12490380 is an apocalyptic number.

12490380 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 12490380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22643712).

12490380 is an abundant number, since it is smaller than the sum of its proper divisors (32797044).

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

12490380 is a wasteful number, since it uses less digits than its factorization.

12490380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 12490380 is about 3534.1731706299. The cubic root of 12490380 is about 232.0198902883.

The spelling of 12490380 in words is "twelve million, four hundred ninety thousand, three hundred eighty".