14155421340 has 24 divisors (see below), whose sum is σ = 39635179920. Its totient is φ = 3774779008.

The previous prime is 14155421309. The next prime is 14155421347. The reversal of 14155421340 is 4312455141.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 14155421298 and 14155421307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14155421347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117961785 + ... + 117961904.

It is an arithmetic number, because the mean of its divisors is an integer number (1651465830).

Almost surely, 2^14155421340 is an apocalyptic number.

14155421340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14155421340 is an abundant number, since it is smaller than the sum of its proper divisors (25479758580).

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

14155421340 is a wasteful number, since it uses less digits than its factorization.

14155421340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235923701 (or 235923699 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 14155421340 its reverse (4312455141), we get a palindrome (18467876481).

The spelling of 14155421340 in words is "fourteen billion, one hundred fifty-five million, four hundred twenty-one thousand, three hundred forty".