12518730 has 96 divisors (see below), whose sum is σ = 38458368. Its totient is φ = 2764800.

The previous prime is 12518717. The next prime is 12518731. The reversal of 12518730 is 3781521.

12518730 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12518694 and 12518703.

It is not an unprimeable number, because it can be changed into a prime (12518731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19210 + ... + 19850.

It is an arithmetic number, because the mean of its divisors is an integer number (400608).

Almost surely, 2^12518730 is an apocalyptic number.

12518730 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 12518730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19229184).

12518730 is an abundant number, since it is smaller than the sum of its proper divisors (25939638).

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

12518730 is a wasteful number, since it uses less digits than its factorization.

12518730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692 (or 689 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 12518730 is about 3538.1817364290. The cubic root of 12518730 is about 232.1952997778.

The spelling of 12518730 in words is "twelve million, five hundred eighteen thousand, seven hundred thirty".