13368778 has 8 divisors (see below), whose sum is σ = 20352672. Its totient is φ = 6584556.

The previous prime is 13368767. The next prime is 13368793. The reversal of 13368778 is 87786331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49750 + ... + 50017.

It is an arithmetic number, because the mean of its divisors is an integer number (2544084).

Almost surely, 2^13368778 is an apocalyptic number.

13368778 is a deficient number, since it is larger than the sum of its proper divisors (6983894).

13368778 is an equidigital number, since it uses as much as digits as its factorization.

13368778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99836.

The product of its digits is 169344, while the sum is 43.

The square root of 13368778 is about 3656.3339563010. Note that the first 3 decimals coincide. The cubic root of 13368778 is about 237.3361558776.

The spelling of 13368778 in words is "thirteen million, three hundred sixty-eight thousand, seven hundred seventy-eight".