13249330 has 16 divisors (see below), whose sum is σ = 24494040. Its totient is φ = 5156352.

The previous prime is 13249321. The next prime is 13249331. The reversal of 13249330 is 3394231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12538681 + 710649 = 3541^2 + 843^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13249295 and 13249304.

It is not an unprimeable number, because it can be changed into a prime (13249331) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17535 + ... + 18274.

Almost surely, 2^13249330 is an apocalyptic number.

13249330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13249330 is a deficient number, since it is larger than the sum of its proper divisors (11244710).

13249330 is a wasteful number, since it uses less digits than its factorization.

13249330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35853.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 13249330 is about 3639.9629118990. The cubic root of 13249330 is about 236.6271859906.

It can be divided in two parts, 132493 and 30, that multiplied together give a triangular number (3974790 = T₂₈₁₉).

The spelling of 13249330 in words is "thirteen million, two hundred forty-nine thousand, three hundred thirty".