14213240 has 16 divisors (see below), whose sum is σ = 31979880. Its totient is φ = 5685280.

The previous prime is 14213239. The next prime is 14213249. The reversal of 14213240 is 4231241.

14213240 = 935² + 936² + ... + 950².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14213249) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 177626 + ... + 177705.

Almost surely, 2^14213240 is an apocalyptic number.

14213240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14213240 is an abundant number, since it is smaller than the sum of its proper divisors (17766640).

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

14213240 is a wasteful number, since it uses less digits than its factorization.

14213240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355342 (or 355338 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 14213240 is about 3770.0450925685. The cubic root of 14213240 is about 242.2317294039.

Adding to 14213240 its reverse (4231241), we get a palindrome (18444481).

The spelling of 14213240 in words is "fourteen million, two hundred thirteen thousand, two hundred forty".