14139280 has 20 divisors (see below), whose sum is σ = 32874012. Its totient is φ = 5655680.

The previous prime is 14139271. The next prime is 14139283. The reversal of 14139280 is 8293141.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 11370384 = 1664^2 + 3372^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (14139283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88291 + ... + 88450.

Almost surely, 2^14139280 is an apocalyptic number.

14139280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14139280 is an abundant number, since it is smaller than the sum of its proper divisors (18734732).

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

14139280 is a wasteful number, since it uses less digits than its factorization.

14139280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176754 (or 176748 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 14139280 is about 3760.2233976188. The cubic root of 14139280 is about 241.8108395902.

The spelling of 14139280 in words is "fourteen million, one hundred thirty-nine thousand, two hundred eighty".