14309920 has 48 divisors (see below), whose sum is σ = 35802648. Its totient is φ = 5386240.

The previous prime is 14309917. The next prime is 14309921. The reversal of 14309920 is 2990341.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13808656 + 501264 = 3716^2 + 708^2 .

It is not an unprimeable number, because it can be changed into a prime (14309921) 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, 90 + ... + 5350.

Almost surely, 2^14309920 is an apocalyptic number.

14309920 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 14309920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17901324).

14309920 is an abundant number, since it is smaller than the sum of its proper divisors (21492728).

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

14309920 is a wasteful number, since it uses less digits than its factorization.

14309920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293 (or 5285 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 14309920 is about 3782.8454898396. The cubic root of 14309920 is about 242.7797176156.

The spelling of 14309920 in words is "fourteen million, three hundred nine thousand, nine hundred twenty".