14381857920 has 64 divisors (see below), whose sum is σ = 45842178240. Its totient is φ = 3835161600.

The previous prime is 14381857913. The next prime is 14381857921. The reversal of 14381857920 is 2975818341.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 14381857920.

It is not an unprimeable number, because it can be changed into a prime (14381857921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3743356 + ... + 3747195.

It is an arithmetic number, because the mean of its divisors is an integer number (716284035).

Almost surely, 2^14381857920 is an apocalyptic number.

14381857920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14381857920 is an abundant number, since it is smaller than the sum of its proper divisors (31460320320).

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

14381857920 is an equidigital number, since it uses as much as digits as its factorization.

14381857920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490573 (or 7490561 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 14381857920 in words is "fourteen billion, three hundred eighty-one million, eight hundred fifty-seven thousand, nine hundred twenty".