13400433 has 12 divisors (see below), whose sum is σ = 19590480. Its totient is φ = 8825496.

The previous prime is 13400417. The next prime is 13400441. The reversal of 13400433 is 33400431.

It is not a de Polignac number, because 13400433 - 2⁴ = 13400417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13400483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8223 + ... + 9716.

It is an arithmetic number, because the mean of its divisors is an integer number (1632540).

Almost surely, 2^13400433 is an apocalyptic number.

It is an amenable number.

13400433 is a deficient number, since it is larger than the sum of its proper divisors (6190047).

13400433 is a wasteful number, since it uses less digits than its factorization.

13400433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18028 (or 18025 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13400433 is about 3660.6601863598. The cubic root of 13400433 is about 237.5233321491.

Adding to 13400433 its reverse (33400431), we get a palindrome (46800864).

The spelling of 13400433 in words is "thirteen million, four hundred thousand, four hundred thirty-three".