14493439440 has 120 divisors (see below), whose sum is σ = 48705184008. Its totient is φ = 3862425600.

The previous prime is 14493439409. The next prime is 14493439453. The reversal of 14493439440 is 4493439441.

14493439440 is a `hidden beast` number, since 144 + 9 + 34 + 39 + 440 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1481018256 + 13012421184 = 38484^2 + 114072^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1291132 + ... + 1302308.

Almost surely, 2^14493439440 is an apocalyptic number.

14493439440 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 14493439440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24352592004).

14493439440 is an abundant number, since it is smaller than the sum of its proper divisors (34211744568).

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

14493439440 is a wasteful number, since it uses less digits than its factorization.

14493439440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12997 (or 12988 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

Subtracting from 14493439440 its reverse (4493439441), we obtain a palindrome (9999999999).

The spelling of 14493439440 in words is "fourteen billion, four hundred ninety-three million, four hundred thirty-nine thousand, four hundred forty".