13400038 has 8 divisors (see below), whose sum is σ = 20288232. Its totient is φ = 6637296.

The previous prime is 13400033. The next prime is 13400041. The reversal of 13400038 is 83000431.

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

It is a super-2 number, since 2×13400038² = 359122036802888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13399988 and 13400024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400033) 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, 31095 + ... + 31522.

It is an arithmetic number, because the mean of its divisors is an integer number (2536029).

Almost surely, 2^13400038 is an apocalyptic number.

13400038 is a deficient number, since it is larger than the sum of its proper divisors (6888194).

13400038 is a wasteful number, since it uses less digits than its factorization.

13400038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62726.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 13400038 is about 3660.6062339454. The cubic root of 13400038 is about 237.5209983281.

Adding to 13400038 its reverse (83000431), we get a palindrome (96400469).

The spelling of 13400038 in words is "thirteen million, four hundred thousand, thirty-eight".