13400446 has 8 divisors (see below), whose sum is σ = 20159640. Its totient is φ = 6680568.

The previous prime is 13400441. The next prime is 13400447. The reversal of 13400446 is 64400431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8961 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (2519955).

Almost surely, 2^13400446 is an apocalyptic number.

13400446 is a deficient number, since it is larger than the sum of its proper divisors (6759194).

13400446 is a wasteful number, since it uses less digits than its factorization.

13400446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19658.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 13400446 is about 3660.6619619954. The cubic root of 13400446 is about 237.5234089576.

Adding to 13400446 its reverse (64400431), we get a palindrome (77800877).

The spelling of 13400446 in words is "thirteen million, four hundred thousand, four hundred forty-six".