12490830 has 144 divisors (see below), whose sum is σ = 37844352. Its totient is φ = 2851200.

The previous prime is 12490823. The next prime is 12490837. The reversal of 12490830 is 3809421.

It is an interprime number because it is at equal distance from previous prime (12490823) and next prime (12490837).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12490794 and 12490803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490837) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 337572 + ... + 337608.

It is an arithmetic number, because the mean of its divisors is an integer number (262808).

Almost surely, 2^12490830 is an apocalyptic number.

12490830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12490830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18922176).

12490830 is an abundant number, since it is smaller than the sum of its proper divisors (25353522).

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

12490830 is a wasteful number, since it uses less digits than its factorization.

12490830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

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

The square root of 12490830 is about 3534.2368341694. The cubic root of 12490830 is about 232.0226766380.

The spelling of 12490830 in words is "twelve million, four hundred ninety thousand, eight hundred thirty".