13421402344 has 32 divisors (see below), whose sum is σ = 29372071680. Its totient is φ = 5629644864.

The previous prime is 13421402327. The next prime is 13421402363. The reversal of 13421402344 is 44320412431.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2547027 + ... + 2552290.

It is an arithmetic number, because the mean of its divisors is an integer number (917877240).

Almost surely, 2^13421402344 is an apocalyptic number.

13421402344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13421402344 is an abundant number, since it is smaller than the sum of its proper divisors (15950669336).

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

13421402344 is a wasteful number, since it uses less digits than its factorization.

13421402344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5099377 (or 5099373 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13421402344 its reverse (44320412431), we get a palindrome (57741814775).

The spelling of 13421402344 in words is "thirteen billion, four hundred twenty-one million, four hundred two thousand, three hundred forty-four".