13494778 has 16 divisors (see below), whose sum is σ = 22228704. Its totient is φ = 6093360.

The previous prime is 13494763. The next prime is 13494779. The reversal of 13494778 is 87749431.

It is not an unprimeable number, because it can be changed into a prime (13494779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501 + ... + 5407.

It is an arithmetic number, because the mean of its divisors is an integer number (1389294).

Almost surely, 2^13494778 is an apocalyptic number.

13494778 is a deficient number, since it is larger than the sum of its proper divisors (8733926).

13494778 is a wasteful number, since it uses less digits than its factorization.

13494778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077.

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

The square root of 13494778 is about 3673.5239212505. The cubic root of 13494778 is about 238.0794523236.

The spelling of 13494778 in words is "thirteen million, four hundred ninety-four thousand, seven hundred seventy-eight".