30126012 has 96 divisors (see below), whose sum is σ = 84672000. Its totient is φ = 8155392.

The previous prime is 30125999. The next prime is 30126037. The reversal of 30126012 is 21062103.

It is a junction number, because it is equal to n+sod(n) for n = 30125982 and 30126000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202114 + ... + 202262.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^30126012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30126012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42336000).

30126012 is an abundant number, since it is smaller than the sum of its proper divisors (54545988).

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

30126012 is a wasteful number, since it uses less digits than its factorization.

30126012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 30126012 is about 5488.7167899246. The cubic root of 30126012 is about 311.1576968599.

Adding to 30126012 its reverse (21062103), we get a palindrome (51188115).

The spelling of 30126012 in words is "thirty million, one hundred twenty-six thousand, twelve".