13820030 has 32 divisors (see below), whose sum is σ = 29928960. Its totient is φ = 4488480.

The previous prime is 13819991. The next prime is 13820041. The reversal of 13820030 is 3002831.

It is a junction number, because it is equal to n+sod(n) for n = 13819990 and 13820008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3866 + ... + 6525.

It is an arithmetic number, because the mean of its divisors is an integer number (935280).

Almost surely, 2^13820030 is an apocalyptic number.

13820030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13820030 is an abundant number, since it is smaller than the sum of its proper divisors (16108930).

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

13820030 is a wasteful number, since it uses less digits than its factorization.

13820030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10424.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 13820030 is about 3717.5300940275. The cubic root of 13820030 is about 239.9770232633.

Adding to 13820030 its reverse (3002831), we get a palindrome (16822861).

The spelling of 13820030 in words is "thirteen million, eight hundred twenty thousand, thirty".