13240000 has 70 divisors (see below), whose sum is σ = 32930084. Its totient is φ = 5280000.

The previous prime is 13239997. The next prime is 13240021. The reversal of 13240000 is 4231.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 39835 + ... + 40165.

Almost surely, 2^13240000 is an apocalyptic number.

13240000 is a gapful number since it is divisible by the number (10) 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 13240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16465042).

13240000 is an abundant number, since it is smaller than the sum of its proper divisors (19690084).

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

13240000 is an frugal number, since it uses more digits than its factorization.

13240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 13240000 is about 3638.6810797321. The cubic root of 13240000 is about 236.5716297206.

Adding to 13240000 its reverse (4231), we get a palindrome (13244231).

The spelling of 13240000 in words is "thirteen million, two hundred forty thousand".