14021904 has 80 divisors (see below), whose sum is σ = 40747392. Its totient is φ = 4122624.

The previous prime is 14021897. The next prime is 14021929. The reversal of 14021904 is 40912041.

14021904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×14021904² = 393227583570432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13864 + ... + 14840.

Almost surely, 2^14021904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14021904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20373696).

14021904 is an abundant number, since it is smaller than the sum of its proper divisors (26725488).

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

14021904 is a wasteful number, since it uses less digits than its factorization.

14021904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 14021904 is about 3744.5832878973. The cubic root of 14021904 is about 241.1398555792.

Adding to 14021904 its reverse (40912041), we get a palindrome (54933945).

The spelling of 14021904 in words is "fourteen million, twenty-one thousand, nine hundred four".