13828530 has 16 divisors (see below), whose sum is σ = 33188544. Its totient is φ = 3687600.

The previous prime is 13828513. The next prime is 13828559. The reversal of 13828530 is 3582831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 460951 = 13828530 / (1 + 3 + 8 + 2 + 8 + 5 + 3 + 0).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230446 + ... + 230505.

It is an arithmetic number, because the mean of its divisors is an integer number (2074284).

Almost surely, 2^13828530 is an apocalyptic number.

13828530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13828530 is an abundant number, since it is smaller than the sum of its proper divisors (19360014).

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

13828530 is a wasteful number, since it uses less digits than its factorization.

13828530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460961.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 13828530 is about 3718.6731504664. The cubic root of 13828530 is about 240.0262124148.

The spelling of 13828530 in words is "thirteen million, eight hundred twenty-eight thousand, five hundred thirty".