14489640 has 96 divisors (see below), whose sum is σ = 51386400. Its totient is φ = 3511680.

The previous prime is 14489639. The next prime is 14489641. The reversal of 14489640 is 4698441.

14489640 = T₃ + T₄ + ... + T₄₄₂.

It is a happy number.

14489640 is a `hidden beast` number, since 1 + 4 + 4 + 8 + 9 + 640 = 666.

It is an interprime number because it is at equal distance from previous prime (14489639) and next prime (14489641).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 14489595 and 14489604.

It is not an unprimeable number, because it can be changed into a prime (14489641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2131 + ... + 5789.

It is an arithmetic number, because the mean of its divisors is an integer number (535275).

Almost surely, 2^14489640 is an apocalyptic number.

14489640 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 14489640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25693200).

14489640 is an abundant number, since it is smaller than the sum of its proper divisors (36896760).

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

14489640 is a wasteful number, since it uses less digits than its factorization.

14489640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3680 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 14489640 is about 3806.5259752168. The cubic root of 14489640 is about 243.7918586890.

It can be divided in two parts, 14489 and 640, that added together give a square (15129 = 123²).

The spelling of 14489640 in words is "fourteen million, four hundred eighty-nine thousand, six hundred forty".