30031224 has 16 divisors (see below), whose sum is σ = 75078120. Its totient is φ = 10010400.

The previous prime is 30031223. The next prime is 30031237. The reversal of 30031224 is 42213003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031223) 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, 625627 + ... + 625674.

Almost surely, 2^30031224 is an apocalyptic number.

It is an amenable number.

30031224 is an abundant number, since it is smaller than the sum of its proper divisors (45046896).

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

30031224 is a wasteful number, since it uses less digits than its factorization.

30031224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251310 (or 1251306 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30031224 is about 5480.0751819660. The cubic root of 30031224 is about 310.8310134706.

Adding to 30031224 its reverse (42213003), we get a palindrome (72244227).

The spelling of 30031224 in words is "thirty million, thirty-one thousand, two hundred twenty-four".