14393772420 has 192 divisors, whose sum is σ = 43208121600. Its totient is φ = 3573391360.

The previous prime is 14393772397. The next prime is 14393772473. The reversal of 14393772420 is 2427739341.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6348127 + ... + 6350393.

It is an arithmetic number, because the mean of its divisors is an integer number (225042300).

Almost surely, 2^14393772420 is an apocalyptic number.

14393772420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14393772420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21604060800).

14393772420 is an abundant number, since it is smaller than the sum of its proper divisors (28814349180).

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

14393772420 is a wasteful number, since it uses less digits than its factorization.

14393772420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The spelling of 14393772420 in words is "fourteen billion, three hundred ninety-three million, seven hundred seventy-two thousand, four hundred twenty".