13103240 has 16 divisors (see below), whose sum is σ = 29482380. Its totient is φ = 5241280.

The previous prime is 13103239. The next prime is 13103269. The reversal of 13103240 is 4230131.

It can be written as a sum of positive squares in 2 ways, for example, as 12716356 + 386884 = 3566^2 + 622^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 163751 + ... + 163830.

Almost surely, 2^13103240 is an apocalyptic number.

13103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13103240 is an abundant number, since it is smaller than the sum of its proper divisors (16379140).

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

13103240 is a wasteful number, since it uses less digits than its factorization.

13103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327592 (or 327588 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13103240 is about 3619.8397754597. The cubic root of 13103240 is about 235.7542687870.

Adding to 13103240 its reverse (4230131), we get a palindrome (17333371).

It can be divided in two parts, 131032 and 40, that added together give a 17-th power (131072 = 2¹⁷).

The spelling of 13103240 in words is "thirteen million, one hundred three thousand, two hundred forty".