30012246 has 48 divisors (see below), whose sum is σ = 72687888. Its totient is φ = 8870400.

The previous prime is 30012239. The next prime is 30012289. The reversal of 30012246 is 64221003.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6270 + ... + 9966.

It is an arithmetic number, because the mean of its divisors is an integer number (1514331).

Almost surely, 2^30012246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30012246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36343944).

30012246 is an abundant number, since it is smaller than the sum of its proper divisors (42675642).

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

30012246 is a wasteful number, since it uses less digits than its factorization.

30012246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757 (or 3754 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30012246 is about 5478.3433627329. The cubic root of 30012246 is about 310.7655239209.

Adding to 30012246 its reverse (64221003), we get a palindrome (94233249).

The spelling of 30012246 in words is "thirty million, twelve thousand, two hundred forty-six".