13376440 has 128 divisors (see below), whose sum is σ = 38776320. Its totient is φ = 4032000.

The previous prime is 13376431. The next prime is 13376477. The reversal of 13376440 is 4467331.

13376440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 13376399 and 13376408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132390 + ... + 132490.

It is an arithmetic number, because the mean of its divisors is an integer number (302940).

Almost surely, 2^13376440 is an apocalyptic number.

13376440 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 13376440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19388160).

13376440 is an abundant number, since it is smaller than the sum of its proper divisors (25399880).

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

13376440 is a wasteful number, since it uses less digits than its factorization.

13376440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 13376440 is about 3657.3815770302. The cubic root of 13376440 is about 237.3814884261.

It can be divided in two parts, 1337 and 6440, that added together give a palindrome (7777).

The spelling of 13376440 in words is "thirteen million, three hundred seventy-six thousand, four hundred forty".