14004638 has 4 divisors (see below), whose sum is σ = 21006960. Its totient is φ = 7002318.

The previous prime is 14004629. The next prime is 14004643. The reversal of 14004638 is 83640041.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×14004638² = 392259771022088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3501158 + ... + 3501161.

It is an arithmetic number, because the mean of its divisors is an integer number (5251740).

Almost surely, 2^14004638 is an apocalyptic number.

14004638 is a deficient number, since it is larger than the sum of its proper divisors (7002322).

14004638 is an equidigital number, since it uses as much as digits as its factorization.

14004638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002321.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 14004638 is about 3742.2771142715. The cubic root of 14004638 is about 241.0408383357.

Adding to 14004638 its reverse (83640041), we get a palindrome (97644679).

The spelling of 14004638 in words is "fourteen million, four thousand, six hundred thirty-eight".