14001840 has 60 divisors (see below), whose sum is σ = 47025264. Its totient is φ = 3733632.

The previous prime is 14001769. The next prime is 14001907. The reversal of 14001840 is 4810041.

14001840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9004 + ... + 10443.

Almost surely, 2^14001840 is an apocalyptic number.

14001840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14001840 is an abundant number, since it is smaller than the sum of its proper divisors (33023424).

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

14001840 is a wasteful number, since it uses less digits than its factorization.

14001840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19466 (or 19457 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 14001840 is about 3741.9032590381. The cubic root of 14001840 is about 241.0247846735.

Adding to 14001840 its reverse (4810041), we get a palindrome (18811881).

It can be divided in two parts, 14001 and 840, that added together give a palindrome (14841).

The spelling of 14001840 in words is "fourteen million, one thousand, eight hundred forty".