12903520 has 96 divisors (see below), whose sum is σ = 35816256. Its totient is φ = 4300800.

The previous prime is 12903511. The next prime is 12903557. The reversal of 12903520 is 2530921.

It is a junction number, because it is equal to n+sod(n) for n = 12903491 and 12903500.

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, 45780 + ... + 46060.

It is an arithmetic number, because the mean of its divisors is an integer number (373086).

Almost surely, 2^12903520 is an apocalyptic number.

12903520 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 12903520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17908128).

12903520 is an abundant number, since it is smaller than the sum of its proper divisors (22912736).

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

12903520 is a wasteful number, since it uses less digits than its factorization.

12903520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 12903520 is about 3592.1469903109. The cubic root of 12903520 is about 234.5503397853.

The spelling of 12903520 in words is "twelve million, nine hundred three thousand, five hundred twenty".