13880078 has 8 divisors (see below), whose sum is σ = 20897760. Its totient is φ = 6914160.

The previous prime is 13880077. The next prime is 13880101. The reversal of 13880078 is 87008831.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12263 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (2612220).

Almost surely, 2^13880078 is an apocalyptic number.

13880078 is a deficient number, since it is larger than the sum of its proper divisors (7017682).

13880078 is a wasteful number, since it uses less digits than its factorization.

13880078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25882.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 13880078 is about 3725.5976701732. The cubic root of 13880078 is about 240.3240876293.

The spelling of 13880078 in words is "thirteen million, eight hundred eighty thousand, seventy-eight".