13400042304 has 112 divisors (see below), whose sum is σ = 38872972800. Its totient is φ = 4040087040.

The previous prime is 13400042281. The next prime is 13400042309. The reversal of 13400042304 is 40324000431.

It is a super-2 number, since 2×13400042304² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400042309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404347 + ... + 436229.

Almost surely, 2^13400042304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13400042304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19436486400).

13400042304 is an abundant number, since it is smaller than the sum of its proper divisors (25472930496).

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

13400042304 is a wasteful number, since it uses less digits than its factorization.

13400042304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32108 (or 32098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 13400042304 its reverse (40324000431), we get a palindrome (53724042735).

The spelling of 13400042304 in words is "thirteen billion, four hundred million, forty-two thousand, three hundred four".