14138378 has 8 divisors (see below), whose sum is σ = 21223620. Its totient is φ = 7063840.

The previous prime is 14138363. The next prime is 14138381. The reversal of 14138378 is 87383141.

It can be written as a sum of positive squares in 2 ways, for example, as 7823209 + 6315169 = 2797^2 + 2513^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3278 + ... + 6246.

Almost surely, 2^14138378 is an apocalyptic number.

14138378 is a deficient number, since it is larger than the sum of its proper divisors (7085242).

14138378 is a wasteful number, since it uses less digits than its factorization.

14138378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352.

The product of its digits is 16128, while the sum is 35.

The square root of 14138378 is about 3760.1034560235. The cubic root of 14138378 is about 241.8056974610.

The spelling of 14138378 in words is "fourteen million, one hundred thirty-eight thousand, three hundred seventy-eight".