13407331 has 12 divisors (see below), whose sum is σ = 16418280. Its totient is φ = 10886400.

The previous prime is 13407323. The next prime is 13407341. The reversal of 13407331 is 13370431.

It is a happy number.

It is not a de Polignac number, because 13407331 - 2³ = 13407323 is a prime.

It is a super-2 number, since 2×13407331² = 359513049087122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13407311) 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 11 ways as a sum of consecutive naturals, for example, 6270 + ... + 8131.

It is an arithmetic number, because the mean of its divisors is an integer number (1368190).

Almost surely, 2^13407331 is an apocalyptic number.

13407331 is a deficient number, since it is larger than the sum of its proper divisors (3010949).

13407331 is a wasteful number, since it uses less digits than its factorization.

13407331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14434 (or 14427 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 13407331 is about 3661.6022449196. The cubic root of 13407331 is about 237.5640809541.

Adding to 13407331 its reverse (13370431), we get a palindrome (26777762).

The spelling of 13407331 in words is "thirteen million, four hundred seven thousand, three hundred thirty-one".