13734378 has 48 divisors (see below), whose sum is σ = 35805120. Its totient is φ = 3716928.

The previous prime is 13734377. The next prime is 13734379. The reversal of 13734378 is 87343731.

13734378 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13734377) and next prime (13734379).

13734378 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (13734377) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475 + ... + 5262.

It is an arithmetic number, because the mean of its divisors is an integer number (745940).

Almost surely, 2^13734378 is an apocalyptic number.

13734378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13734378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17902560).

13734378 is an abundant number, since it is smaller than the sum of its proper divisors (22070742).

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

13734378 is a wasteful number, since it uses less digits than its factorization.

13734378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771 (or 5768 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 13734378 is about 3705.9921748433. The cubic root of 13734378 is about 239.4802293061.

The spelling of 13734378 in words is "thirteen million, seven hundred thirty-four thousand, three hundred seventy-eight".