43500012 has 24 divisors (see below), whose sum is σ = 104244336. Its totient is φ = 14107968.

The previous prime is 43500011. The next prime is 43500019. The reversal of 43500012 is 21000534.

It is a junction number, because it is equal to n+sod(n) for n = 43499964 and 43500000.

It is not an unprimeable number, because it can be changed into a prime (43500011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48543 + ... + 49430.

It is an arithmetic number, because the mean of its divisors is an integer number (4343514).

Almost surely, 2^43500012 is an apocalyptic number.

It is an amenable number.

43500012 is an abundant number, since it is smaller than the sum of its proper divisors (60744324).

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

43500012 is a wasteful number, since it uses less digits than its factorization.

43500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98017 (or 98015 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 43500012 is about 6595.4538888540. The cubic root of 43500012 is about 351.6925151394.

Adding to 43500012 its reverse (21000534), we get a palindrome (64500546).

The spelling of 43500012 in words is "forty-three million, five hundred thousand, twelve".