14401021398 has 16 divisors (see below), whose sum is σ = 29274208176. Its totient is φ = 4721646240.

The previous prime is 14401021379. The next prime is 14401021399. The reversal of 14401021398 is 89312010441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14401021399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19673161 + ... + 19673892.

It is an arithmetic number, because the mean of its divisors is an integer number (1829638011).

Almost surely, 2^14401021398 is an apocalyptic number.

14401021398 is an abundant number, since it is smaller than the sum of its proper divisors (14873186778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14401021398 is a wasteful number, since it uses less digits than its factorization.

14401021398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39347119.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 14401021398 in words is "fourteen billion, four hundred one million, twenty-one thousand, three hundred ninety-eight".