30121244 has 12 divisors (see below), whose sum is σ = 53067000. Its totient is φ = 14959248.

The previous prime is 30121241. The next prime is 30121261. The reversal of 30121244 is 44212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24674 + ... + 25865.

It is an arithmetic number, because the mean of its divisors is an integer number (4422250).

Almost surely, 2^30121244 is an apocalyptic number.

It is an amenable number.

30121244 is a deficient number, since it is larger than the sum of its proper divisors (22945756).

30121244 is a wasteful number, since it uses less digits than its factorization.

30121244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50692 (or 50690 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 30121244 is about 5488.2824271351. The cubic root of 30121244 is about 311.1412805021.

Adding to 30121244 its reverse (44212103), we get a palindrome (74333347).

The spelling of 30121244 in words is "thirty million, one hundred twenty-one thousand, two hundred forty-four".