13400407 has 8 divisors (see below), whose sum is σ = 13947840. Its totient is φ = 12858720.

The previous prime is 13400389. The next prime is 13400417. The reversal of 13400407 is 70400431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13400407 - 2⁷ = 13400279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3682 + ... + 6352.

It is an arithmetic number, because the mean of its divisors is an integer number (1743480).

Almost surely, 2^13400407 is an apocalyptic number.

13400407 is a deficient number, since it is larger than the sum of its proper divisors (547433).

13400407 is a wasteful number, since it uses less digits than its factorization.

13400407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 13400407 is about 3660.6566350861. The cubic root of 13400407 is about 237.5231785319.

Adding to 13400407 its reverse (70400431), we get a palindrome (83800838).

The spelling of 13400407 in words is "thirteen million, four hundred thousand, four hundred seven".