14780240 has 20 divisors (see below), whose sum is σ = 34364244. Its totient is φ = 5912064.

The previous prime is 14780221. The next prime is 14780243. The reversal of 14780240 is 4208741.

It can be written as a sum of positive squares in 2 ways, for example, as 2446096 + 12334144 = 1564^2 + 3512^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14780243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92297 + ... + 92456.

Almost surely, 2^14780240 is an apocalyptic number.

14780240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14780240 is an abundant number, since it is smaller than the sum of its proper divisors (19584004).

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

14780240 is a wasteful number, since it uses less digits than its factorization.

14780240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184766 (or 184760 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 14780240 is about 3844.5077708336. The cubic root of 14780240 is about 245.4108890225.

Adding to 14780240 its reverse (4208741), we get a palindrome (18988981).

The spelling of 14780240 in words is "fourteen million, seven hundred eighty thousand, two hundred forty".