14020520 has 32 divisors (see below), whose sum is σ = 31660200. Its totient is φ = 5587968.

The previous prime is 14020519. The next prime is 14020541. The reversal of 14020520 is 2502041.

It can be written as a sum of positive squares in 4 ways, for example, as 14002564 + 17956 = 3742^2 + 134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14020495 and 14020504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15932 + ... + 16788.

Almost surely, 2^14020520 is an apocalyptic number.

14020520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14020520 is an abundant number, since it is smaller than the sum of its proper divisors (17639680).

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

14020520 is a wasteful number, since it uses less digits than its factorization.

14020520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 14020520 is about 3744.3984830677. The cubic root of 14020520 is about 241.1319215986.

Adding to 14020520 its reverse (2502041), we get a palindrome (16522561).

The spelling of 14020520 in words is "fourteen million, twenty thousand, five hundred twenty".