13380706 has 4 divisors (see below), whose sum is σ = 20071062. Its totient is φ = 6690352.

The previous prime is 13380659. The next prime is 13380707. The reversal of 13380706 is 60708331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60708331 = 41 ⋅1480691.

It can be written as a sum of positive squares in only one way, i.e., 13068225 + 312481 = 3615^2 + 559^2 .

It is not an unprimeable number, because it can be changed into a prime (13380707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3345175 + ... + 3345178.

Almost surely, 2^13380706 is an apocalyptic number.

13380706 is the 2314-th centered pentagonal number.

13380706 is a deficient number, since it is larger than the sum of its proper divisors (6690356).

13380706 is an equidigital number, since it uses as much as digits as its factorization.

13380706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690355.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 13380706 is about 3657.9647346578. The cubic root of 13380706 is about 237.4067208944.

The spelling of 13380706 in words is "thirteen million, three hundred eighty thousand, seven hundred six".