30281230 has 16 divisors (see below), whose sum is σ = 62292960. Its totient is φ = 10382112.

The previous prime is 30281227. The next prime is 30281261. The reversal of 30281230 is 3218203.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30281198 and 30281207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216225 + ... + 216364.

It is an arithmetic number, because the mean of its divisors is an integer number (3893310).

Almost surely, 2^30281230 is an apocalyptic number.

30281230 is an abundant number, since it is smaller than the sum of its proper divisors (32011730).

30281230 is a wasteful number, since it uses less digits than its factorization.

30281230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432603.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 30281230 is about 5502.8383585201. The cubic root of 30281230 is about 311.6911734314.

Adding to 30281230 its reverse (3218203), we get a palindrome (33499433).

The spelling of 30281230 in words is "thirty million, two hundred eighty-one thousand, two hundred thirty".