14421890397 has 16 divisors (see below), whose sum is σ = 20244523520. Its totient is φ = 9107089200.

The previous prime is 14421890393. The next prime is 14421890419. The reversal of 14421890397 is 79309812441.

It is not a de Polignac number, because 14421890397 - 2² = 14421890393 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14421890393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416022 + ... + 449352.

It is an arithmetic number, because the mean of its divisors is an integer number (1265282720).

Almost surely, 2^14421890397 is an apocalyptic number.

It is an amenable number.

14421890397 is a deficient number, since it is larger than the sum of its proper divisors (5822633123).

14421890397 is a wasteful number, since it uses less digits than its factorization.

14421890397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40944.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 14421890397 in words is "fourteen billion, four hundred twenty-one million, eight hundred ninety thousand, three hundred ninety-seven".