13002978 has 8 divisors (see below), whose sum is σ = 26005968. Its totient is φ = 4334324.

The previous prime is 13002971. The next prime is 13003007. The reversal of 13002978 is 87920031.

It is a happy number.

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

13002978 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13002971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1083576 + ... + 1083587.

It is an arithmetic number, because the mean of its divisors is an integer number (3250746).

Almost surely, 2^13002978 is an apocalyptic number.

13002978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13002978 is a wasteful number, since it uses less digits than its factorization.

13002978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167168.

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 13002978 is about 3605.9642261121. The cubic root of 13002978 is about 235.1514219518.

It can be divided in two parts, 1300 and 2978, that added together give a triangular number (4278 = T₉₂).

The spelling of 13002978 in words is "thirteen million, two thousand, nine hundred seventy-eight".