13979040 has 48 divisors (see below), whose sum is σ = 44035488. Its totient is φ = 3727616.

The previous prime is 13979039. The next prime is 13979051. The reversal of 13979040 is 4097931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 13978992 and 13979010.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14082 + ... + 15041.

It is an arithmetic number, because the mean of its divisors is an integer number (917406).

Almost surely, 2^13979040 is an apocalyptic number.

13979040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13979040 is an abundant number, since it is smaller than the sum of its proper divisors (30056448).

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

13979040 is a wasteful number, since it uses less digits than its factorization.

13979040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29141 (or 29133 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 13979040 is about 3738.8554398372. The cubic root of 13979040 is about 240.8938887675.

The spelling of 13979040 in words is "thirteen million, nine hundred seventy-nine thousand, forty".