13500004 has 48 divisors (see below), whose sum is σ = 28327936. Its totient is φ = 5508000.

The previous prime is 13499999. The next prime is 13500007. The reversal of 13500004 is 40000531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89329 + ... + 89479.

Almost surely, 2^13500004 is an apocalyptic number.

13500004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13500004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14163968).

13500004 is an abundant number, since it is smaller than the sum of its proper divisors (14827932).

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

13500004 is a wasteful number, since it uses less digits than its factorization.

13500004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 13500004 is about 3674.2351585058. The cubic root of 13500004 is about 238.1101813123.

Adding to 13500004 its reverse (40000531), we get a palindrome (53500535).

The spelling of 13500004 in words is "thirteen million, five hundred thousand, four".