14001720 has 32 divisors (see below), whose sum is σ = 42005520. Its totient is φ = 3733760.

The previous prime is 14001709. The next prime is 14001721. The reversal of 14001720 is 2710041.

14001720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 14001720.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14001721) 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, 58221 + ... + 58460.

Almost surely, 2^14001720 is an apocalyptic number.

14001720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14001720 is an abundant number, since it is smaller than the sum of its proper divisors (28003800).

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

14001720 is a wasteful number, since it uses less digits than its factorization.

14001720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116695 (or 116691 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 14001720 is about 3741.8872243829. The cubic root of 14001720 is about 241.0240961198.

Adding to 14001720 its reverse (2710041), we get a palindrome (16711761).

The spelling of 14001720 in words is "fourteen million, one thousand, seven hundred twenty".