14438401840 has 40 divisors (see below), whose sum is σ = 33575248368. Its totient is φ = 5774334720.

The previous prime is 14438401837. The next prime is 14438401843. The reversal of 14438401840 is 4810483441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (14438401837) and next prime (14438401843).

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 14438401840.

It is not an unprimeable number, because it can be changed into a prime (14438401843) 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, 570250 + ... + 595030.

Almost surely, 2^14438401840 is an apocalyptic number.

14438401840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14438401840 is an abundant number, since it is smaller than the sum of its proper divisors (19136846528).

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

14438401840 is a wasteful number, since it uses less digits than its factorization.

14438401840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32077 (or 32071 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The spelling of 14438401840 in words is "fourteen billion, four hundred thirty-eight million, four hundred one thousand, eight hundred forty".