14530640 has 40 divisors (see below), whose sum is σ = 34703880. Its totient is φ = 5654016.

The previous prime is 14530583. The next prime is 14530657. The reversal of 14530640 is 4603541.

It is a happy number.

14530640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8904256 + 5626384 = 2984^2 + 2372^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×14530640² = 422278997619200, which contains 22 as substring.

It is a nialpdrome in base 16.

It is a congruent number.

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, 506 + ... + 5414.

It is an arithmetic number, because the mean of its divisors is an integer number (867597).

Almost surely, 2^14530640 is an apocalyptic number.

14530640 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 14530640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17351940).

14530640 is an abundant number, since it is smaller than the sum of its proper divisors (20173240).

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

14530640 is a wasteful number, since it uses less digits than its factorization.

14530640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4959 (or 4953 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 14530640 is about 3811.9076589026. The cubic root of 14530640 is about 244.0215872686.

The spelling of 14530640 in words is "fourteen million, five hundred thirty thousand, six hundred forty".