13240425 has 36 divisors (see below), whose sum is σ = 24078320. Its totient is φ = 6415200.

The previous prime is 13240421. The next prime is 13240453. The reversal of 13240425 is 52404231.

It is not a de Polignac number, because 13240425 - 2² = 13240421 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13240421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8346 + ... + 9804.

Almost surely, 2^13240425 is an apocalyptic number.

13240425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13240425 is a deficient number, since it is larger than the sum of its proper divisors (10837895).

13240425 is a wasteful number, since it uses less digits than its factorization.

13240425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 13240425 is about 3638.7394795451. The cubic root of 13240425 is about 236.5741609861.

Adding to 13240425 its reverse (52404231), we get a palindrome (65644656).

It can be divided in two parts, 132 and 40425, that multiplied together give a square (5336100 = 2310²).

The spelling of 13240425 in words is "thirteen million, two hundred forty thousand, four hundred twenty-five".