13030405 has 8 divisors (see below), whose sum is σ = 15780600. Its totient is φ = 10328256.

The previous prime is 13030403. The next prime is 13030453. The reversal of 13030405 is 50403031.

It can be written as a sum of positive squares in 4 ways, for example, as 306916 + 12723489 = 554^2 + 3567^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13030405 - 2¹ = 13030403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11410 + ... + 12499.

It is an arithmetic number, because the mean of its divisors is an integer number (1972575).

Almost surely, 2^13030405 is an apocalyptic number.

It is an amenable number.

13030405 is a deficient number, since it is larger than the sum of its proper divisors (2750195).

13030405 is a wasteful number, since it uses less digits than its factorization.

13030405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24023.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13030405 is about 3609.7652278230. The cubic root of 13030405 is about 235.3166397130.

Adding to 13030405 its reverse (50403031), we get a palindrome (63433436).

The spelling of 13030405 in words is "thirteen million, thirty thousand, four hundred five".