14000004 has 36 divisors (see below), whose sum is σ = 35628684. Its totient is φ = 4635072.

The previous prime is 13999981. The next prime is 14000029. The reversal of 14000004 is 40000041.

It can be written as a sum of positive squares in 2 ways, for example, as 5531904 + 8468100 = 2352^2 + 2910^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×14000004² = 392000224000032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a self number, because there is not a number n which added to its sum of digits gives 14000004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4414 + ... + 6890.

Almost surely, 2^14000004 is an apocalyptic number.

It is an amenable number.

14000004 is an abundant number, since it is smaller than the sum of its proper divisors (21628680).

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

14000004 is a wasteful number, since it uses less digits than its factorization.

14000004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644 (or 2639 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 14000004 is about 3741.6579212964. The cubic root of 14000004 is about 241.0142493713.

Adding to 14000004 its reverse (40000041), we get a palindrome (54000045).

The spelling of 14000004 in words is "fourteen million, four", and thus it is an aban number.