12358728 has 96 divisors (see below), whose sum is σ = 37065600. Its totient is φ = 3700224.

The previous prime is 12358691. The next prime is 12358741. The reversal of 12358728 is 82785321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12358692 and 12358701.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27933 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (386100).

Almost surely, 2^12358728 is an apocalyptic number.

12358728 is a gapful number since it is divisible by the number (18) 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 12358728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18532800).

12358728 is an abundant number, since it is smaller than the sum of its proper divisors (24706872).

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

12358728 is a wasteful number, since it uses less digits than its factorization.

12358728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 484 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 12358728 is about 3515.4982577154. The cubic root of 12358728 is about 231.2018250755.

The spelling of 12358728 in words is "twelve million, three hundred fifty-eight thousand, seven hundred twenty-eight".