13430020 has 12 divisors (see below), whose sum is σ = 28203084. Its totient is φ = 5372000.

The previous prime is 13430009. The next prime is 13430063. The reversal of 13430020 is 2003431.

It can be written as a sum of positive squares in 2 ways, for example, as 2566404 + 10863616 = 1602^2 + 3296^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335731 + ... + 335770.

It is an arithmetic number, because the mean of its divisors is an integer number (2350257).

Almost surely, 2^13430020 is an apocalyptic number.

13430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13430020 is an abundant number, since it is smaller than the sum of its proper divisors (14773064).

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

13430020 is a wasteful number, since it uses less digits than its factorization.

13430020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671510 (or 671508 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 13430020 is about 3664.6991690997. The cubic root of 13430020 is about 237.6980139934.

Adding to 13430020 its reverse (2003431), we get a palindrome (15433451).

The spelling of 13430020 in words is "thirteen million, four hundred thirty thousand, twenty".