14289440 has 96 divisors (see below), whose sum is σ = 38537856. Its totient is φ = 4956160.

The previous prime is 14289427. The next prime is 14289449. The reversal of 14289440 is 4498241.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 14289397 and 14289406.

It is not an unprimeable number, because it can be changed into a prime (14289449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40304 + ... + 40656.

It is an arithmetic number, because the mean of its divisors is an integer number (401436).

Almost surely, 2^14289440 is an apocalyptic number.

14289440 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 14289440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19268928).

14289440 is an abundant number, since it is smaller than the sum of its proper divisors (24248416).

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

14289440 is a wasteful number, since it uses less digits than its factorization.

14289440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 14289440 is about 3780.1375636344. The cubic root of 14289440 is about 242.6638422299.

The spelling of 14289440 in words is "fourteen million, two hundred eighty-nine thousand, four hundred forty".