14042240 has 64 divisors (see below), whose sum is σ = 34535160. Its totient is φ = 5455872.

The previous prime is 14042233. The next prime is 14042243. The reversal of 14042240 is 4224041.

It can be written as a sum of positive squares in 4 ways, for example, as 13601344 + 440896 = 3688^2 + 664^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (14042243) 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, 23384 + ... + 23976.

Almost surely, 2^14042240 is an apocalyptic number.

14042240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14042240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17267580).

14042240 is an abundant number, since it is smaller than the sum of its proper divisors (20492920).

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

14042240 is an equidigital number, since it uses as much as digits as its factorization.

14042240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 14042240 is about 3747.2976930049. The cubic root of 14042240 is about 241.2563744993.

Adding to 14042240 its reverse (4224041), we get a palindrome (18266281).

The spelling of 14042240 in words is "fourteen million, forty-two thousand, two hundred forty".