14391398 has 48 divisors (see below), whose sum is σ = 27086400. Its totient is φ = 5700240.

The previous prime is 14391397. The next prime is 14391407. The reversal of 14391398 is 89319341.

14391398 = 237² + 238² + ... + 383².

It is a happy number.

It is a super-2 number, since 2×14391398² = 414224672788808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a Curzon number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14391397) 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 23 ways as a sum of consecutive naturals, for example, 109793 + ... + 109923.

It is an arithmetic number, because the mean of its divisors is an integer number (564300).

Almost surely, 2^14391398 is an apocalyptic number.

14391398 is a deficient number, since it is larger than the sum of its proper divisors (12695002).

14391398 is a wasteful number, since it uses less digits than its factorization.

14391398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 218 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 14391398 is about 3793.5996098692. The cubic root of 14391398 is about 243.2396265611.

The spelling of 14391398 in words is "fourteen million, three hundred ninety-one thousand, three hundred ninety-eight".