30012280 has 32 divisors (see below), whose sum is σ = 69102000. Its totient is φ = 11725056.

The previous prime is 30012239. The next prime is 30012289. The reversal of 30012280 is 8221003.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012289) 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, 7005 + ... + 10444.

Almost surely, 2^30012280 is an apocalyptic number.

It is an amenable number.

30012280 is an abundant number, since it is smaller than the sum of its proper divisors (39089720).

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

30012280 is a wasteful number, since it uses less digits than its factorization.

30012280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17503 (or 17499 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 30012280 is about 5478.3464658599. The cubic root of 30012280 is about 310.7656412732.

Adding to 30012280 its reverse (8221003), we get a palindrome (38233283).

The spelling of 30012280 in words is "thirty million, twelve thousand, two hundred eighty".