13398378 has 32 divisors (see below), whose sum is σ = 30844800. Its totient is φ = 3800640.

The previous prime is 13398323. The next prime is 13398379. The reversal of 13398378 is 87389331.

13398378 is digitally balanced in base 2 and base 4, because in such bases 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 (42).

It is not an unprimeable number, because it can be changed into a prime (13398379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5188 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (963900).

Almost surely, 2^13398378 is an apocalyptic number.

13398378 is an abundant number, since it is smaller than the sum of its proper divisors (17446422).

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

13398378 is a wasteful number, since it uses less digits than its factorization.

13398378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302.

The product of its digits is 108864, while the sum is 42.

The square root of 13398378 is about 3660.3794885230. The cubic root of 13398378 is about 237.5111898698.

The spelling of 13398378 in words is "thirteen million, three hundred ninety-eight thousand, three hundred seventy-eight".