12490320 has 80 divisors (see below), whose sum is σ = 39318912. Its totient is φ = 3279360.

The previous prime is 12490301. The next prime is 12490333. The reversal of 12490320 is 2309421.

12490320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16674 + ... + 17406.

Almost surely, 2^12490320 is an apocalyptic number.

12490320 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 12490320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19659456).

12490320 is an abundant number, since it is smaller than the sum of its proper divisors (26828592).

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

12490320 is a wasteful number, since it uses less digits than its factorization.

12490320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 814 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 12490320 is about 3534.1646820713. The cubic root of 12490320 is about 232.0195187700.

Adding to 12490320 its reverse (2309421), we get a palindrome (14799741).

The spelling of 12490320 in words is "twelve million, four hundred ninety thousand, three hundred twenty".