14420357440 has 112 divisors (see below), whose sum is σ = 36524500992. Its totient is φ = 5404041216.

The previous prime is 14420357437. The next prime is 14420357459. The reversal of 14420357440 is 4475302441.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 14420357396 and 14420357405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207177 + ... + 1219063.

It is an arithmetic number, because the mean of its divisors is an integer number (326111616).

Almost surely, 2^14420357440 is an apocalyptic number.

14420357440 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 14420357440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18262250496).

14420357440 is an abundant number, since it is smaller than the sum of its proper divisors (22104143552).

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

14420357440 is a wasteful number, since it uses less digits than its factorization.

14420357440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12144 (or 12134 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 14420357440 its reverse (4475302441), we get a palindrome (18895659881).

The spelling of 14420357440 in words is "fourteen billion, four hundred twenty million, three hundred fifty-seven thousand, four hundred forty".