13402401144 has 64 divisors (see below), whose sum is σ = 36648720000. Its totient is φ = 4050587520.

The previous prime is 13402401107. The next prime is 13402401157. The reversal of 13402401144 is 44110420431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33082 + ... + 167030.

It is an arithmetic number, because the mean of its divisors is an integer number (572636250).

Almost surely, 2^13402401144 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 13402401144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18324360000).

13402401144 is an abundant number, since it is smaller than the sum of its proper divisors (23246318856).

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

13402401144 is a wasteful number, since it uses less digits than its factorization.

13402401144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134348 (or 134344 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 13402401144 its reverse (44110420431), we get a palindrome (57512821575).

The spelling of 13402401144 in words is "thirteen billion, four hundred two million, four hundred one thousand, one hundred forty-four".