13250730 has 32 divisors (see below), whose sum is σ = 32254848. Its totient is φ = 3483200.

The previous prime is 13250723. The next prime is 13250753. The reversal of 13250730 is 3705231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13250697 and 13250706.

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, 981 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (1007964).

Almost surely, 2^13250730 is an apocalyptic number.

13250730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13250730 is an abundant number, since it is smaller than the sum of its proper divisors (19004118).

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

13250730 is a wasteful number, since it uses less digits than its factorization.

13250730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 13250730 is about 3640.1552164709. The cubic root of 13250730 is about 236.6355201578.

Adding to 13250730 its reverse (3705231), we get a palindrome (16955961).

The spelling of 13250730 in words is "thirteen million, two hundred fifty thousand, seven hundred thirty".