13430540 has 24 divisors (see below), whose sum is σ = 28593600. Its totient is φ = 5298048.

The previous prime is 13430539. The next prime is 13430581. The reversal of 13430540 is 4503431.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 7 ways as a sum of consecutive naturals, for example, 3140 + ... + 6059.

It is an arithmetic number, because the mean of its divisors is an integer number (1191400).

Almost surely, 2^13430540 is an apocalyptic number.

13430540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13430540 is an abundant number, since it is smaller than the sum of its proper divisors (15163060).

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

13430540 is a wasteful number, since it uses less digits than its factorization.

13430540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281 (or 9279 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 13430540 is about 3664.7701155734. The cubic root of 13430540 is about 237.7010817816.

Adding to 13430540 its reverse (4503431), we get a palindrome (17933971).

The spelling of 13430540 in words is "thirteen million, four hundred thirty thousand, five hundred forty".