14380640428 has 192 divisors, whose sum is σ = 34787450880. Its totient is φ = 5071429440.

The previous prime is 14380640419. The next prime is 14380640441. The reversal of 14380640428 is 82404608341.

It is a happy number.

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, 16285675 + ... + 16286557.

It is an arithmetic number, because the mean of its divisors is an integer number (181184640).

Almost surely, 2^14380640428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14380640428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17393725440).

14380640428 is an abundant number, since it is smaller than the sum of its proper divisors (20406810452).

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

14380640428 is a wasteful number, since it uses less digits than its factorization.

14380640428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 14380640428 in words is "fourteen billion, three hundred eighty million, six hundred forty thousand, four hundred twenty-eight".