14221240 has 32 divisors (see below), whose sum is σ = 34907760. Its totient is φ = 5171200.

The previous prime is 14221237. The next prime is 14221241. The reversal of 14221240 is 4212241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14221241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15721 + ... + 16600.

Almost surely, 2^14221240 is an apocalyptic number.

14221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14221240 is an abundant number, since it is smaller than the sum of its proper divisors (20686520).

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

14221240 is a wasteful number, since it uses less digits than its factorization.

14221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32343 (or 32339 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 14221240 is about 3771.1059385809. The cubic root of 14221240 is about 242.2771680318.

Adding to 14221240 its reverse (4212241), we get a palindrome (18433481).

It can be divided in two parts, 1422 and 1240, that added together give a palindrome (2662).

The spelling of 14221240 in words is "fourteen million, two hundred twenty-one thousand, two hundred forty".