13341978 has 96 divisors (see below), whose sum is σ = 33860736. Its totient is φ = 3763584.

The previous prime is 13341973. The next prime is 13342003. The reversal of 13341978 is 87914331.

It is a happy number.

13341978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13341973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199101 + ... + 199167.

It is an arithmetic number, because the mean of its divisors is an integer number (352716).

Almost surely, 2^13341978 is an apocalyptic number.

13341978 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 13341978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16930368).

13341978 is an abundant number, since it is smaller than the sum of its proper divisors (20518758).

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

13341978 is a wasteful number, since it uses less digits than its factorization.

13341978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 145 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 13341978 is about 3652.6672446310. The cubic root of 13341978 is about 237.1774561563.

The spelling of 13341978 in words is "thirteen million, three hundred forty-one thousand, nine hundred seventy-eight".