14978988 has 36 divisors (see below), whose sum is σ = 38034360. Its totient is φ = 4970496.

The previous prime is 14978987. The next prime is 14979001. The reversal of 14978988 is 88987941.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (14978987) 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 11 ways as a sum of consecutive naturals, for example, 8443 + ... + 10061.

It is an arithmetic number, because the mean of its divisors is an integer number (1056510).

Almost surely, 2^14978988 is an apocalyptic number.

14978988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

14978988 is an abundant number, since it is smaller than the sum of its proper divisors (23055372).

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

14978988 is a wasteful number, since it uses less digits than its factorization.

14978988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1881 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 14978988 is about 3870.2697580401. The cubic root of 14978988 is about 246.5059979587.

The spelling of 14978988 in words is "fourteen million, nine hundred seventy-eight thousand, nine hundred eighty-eight".