14279940 has 36 divisors (see below), whose sum is σ = 43316364. Its totient is φ = 3807936.

The previous prime is 14279929. The next prime is 14279953. The reversal of 14279940 is 4997241.

It can be written as a sum of positive squares in 2 ways, for example, as 5846724 + 8433216 = 2418^2 + 2904^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14279895 and 14279904.

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 11 ways as a sum of consecutive naturals, for example, 39487 + ... + 39846.

Almost surely, 2^14279940 is an apocalyptic number.

14279940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14279940 is an abundant number, since it is smaller than the sum of its proper divisors (29036424).

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

14279940 is a wasteful number, since it uses less digits than its factorization.

14279940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79348 (or 79343 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 14279940 is about 3778.8807866880. The cubic root of 14279940 is about 242.6100538480.

The spelling of 14279940 in words is "fourteen million, two hundred seventy-nine thousand, nine hundred forty".