13978082 has 16 divisors (see below), whose sum is σ = 21997440. Its totient is φ = 6653808.

The previous prime is 13978057. The next prime is 13978099. The reversal of 13978082 is 28087931.

13978082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1469 + ... + 5487.

It is an arithmetic number, because the mean of its divisors is an integer number (1374840).

Almost surely, 2^13978082 is an apocalyptic number.

13978082 is a deficient number, since it is larger than the sum of its proper divisors (8019358).

13978082 is a wasteful number, since it uses less digits than its factorization.

13978082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 13978082 is about 3738.7273235688. The cubic root of 13978082 is about 240.8883857282. Note that the first 3 decimals are identical.

The spelling of 13978082 in words is "thirteen million, nine hundred seventy-eight thousand, eighty-two".