13406530 has 8 divisors (see below), whose sum is σ = 24131772. Its totient is φ = 5362608.

The previous prime is 13406527. The next prime is 13406531. The reversal of 13406530 is 3560431.

It can be written as a sum of positive squares in 2 ways, for example, as 13329801 + 76729 = 3651^2 + 277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (13406531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 670317 + ... + 670336.

Almost surely, 2^13406530 is an apocalyptic number.

13406530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13406530 is a deficient number, since it is larger than the sum of its proper divisors (10725242).

13406530 is a wasteful number, since it uses less digits than its factorization.

13406530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340660.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 13406530 is about 3661.4928649391. The cubic root of 13406530 is about 237.5593498952.

Adding to 13406530 its reverse (3560431), we get a palindrome (16966961).

The spelling of 13406530 in words is "thirteen million, four hundred six thousand, five hundred thirty".