13650012 has 48 divisors (see below), whose sum is σ = 35616000. Its totient is φ = 4520880.

The previous prime is 13650011. The next prime is 13650029. The reversal of 13650012 is 21005631.

13650012 is a `hidden beast` number, since 1 + 3 + 650 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13650011) 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, 22489 + ... + 23087.

It is an arithmetic number, because the mean of its divisors is an integer number (742000).

Almost surely, 2^13650012 is an apocalyptic number.

13650012 is a gapful number since it is divisible by the number (12) 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 13650012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17808000).

13650012 is an abundant number, since it is smaller than the sum of its proper divisors (21965988).

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

13650012 is a wasteful number, since it uses less digits than its factorization.

13650012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13650012 is about 3694.5922643778. The cubic root of 13650012 is about 238.9888710585.

Adding to 13650012 its reverse (21005631), we get a palindrome (34655643).

The spelling of 13650012 in words is "thirteen million, six hundred fifty thousand, twelve".