13402404342 has 80 divisors (see below), whose sum is σ = 32090303520. Its totient is φ = 4166007552.

The previous prime is 13402404329. The next prime is 13402404343. The reversal of 13402404342 is 24340420431.

It is a happy number.

13402404342 is a `hidden beast` number, since 1 + 340 + 240 + 43 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13402404343) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 277863 + ... + 322509.

It is an arithmetic number, because the mean of its divisors is an integer number (401128794).

Almost surely, 2^13402404342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13402404342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16045151760).

13402404342 is an abundant number, since it is smaller than the sum of its proper divisors (18687899178).

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

13402404342 is a wasteful number, since it uses less digits than its factorization.

13402404342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44787 (or 44778 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 13402404342 its reverse (24340420431), we get a palindrome (37742824773).

The spelling of 13402404342 in words is "thirteen billion, four hundred two million, four hundred four thousand, three hundred forty-two".