13402102340 has 96 divisors (see below), whose sum is σ = 31831833600. Its totient is φ = 4695057920.

The previous prime is 13402102321. The next prime is 13402102349. The reversal of 13402102340 is 4320120431.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13402102349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3245357 + ... + 3249483.

It is an arithmetic number, because the mean of its divisors is an integer number (331581600).

Almost surely, 2^13402102340 is an apocalyptic number.

13402102340 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 13402102340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15915916800).

13402102340 is an abundant number, since it is smaller than the sum of its proper divisors (18429731260).

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

13402102340 is a wasteful number, since it uses less digits than its factorization.

13402102340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685 (or 4683 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13402102340 its reverse (4320120431), we get a palindrome (17722222771).

The spelling of 13402102340 in words is "thirteen billion, four hundred two million, one hundred two thousand, three hundred forty".