13782028 has 24 divisors (see below), whose sum is σ = 26227152. Its totient is φ = 6298944.

The previous prime is 13782017. The next prime is 13782031. The reversal of 13782028 is 82028731.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4326 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (1092798).

Almost surely, 2^13782028 is an apocalyptic number.

It is an amenable number.

13782028 is a deficient number, since it is larger than the sum of its proper divisors (12445124).

13782028 is a wasteful number, since it uses less digits than its factorization.

13782028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 13782028 is about 3712.4153862411. The cubic root of 13782028 is about 239.7568602441.

The spelling of 13782028 in words is "thirteen million, seven hundred eighty-two thousand, twenty-eight".