30244225 has 24 divisors (see below), whose sum is σ = 41515200. Its totient is φ = 21672000.

The previous prime is 30244213. The next prime is 30244231. The reversal of 30244225 is 52244203.

It is not a de Polignac number, because 30244225 - 2¹⁵ = 30211457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30244196 and 30244205.

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, 18751 + ... + 20299.

It is an arithmetic number, because the mean of its divisors is an integer number (1729800).

Almost surely, 2^30244225 is an apocalyptic number.

It is an amenable number.

30244225 is a deficient number, since it is larger than the sum of its proper divisors (11270975).

30244225 is a wasteful number, since it uses less digits than its factorization.

30244225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1636 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 30244225 is about 5499.4749749408. The cubic root of 30244225 is about 311.5641548848.

Subtracting from 30244225 its sum of digits (22), we obtain a palindrome (30244203).

Adding to 30244225 its reverse (52244203), we get a palindrome (82488428).

The spelling of 30244225 in words is "thirty million, two hundred forty-four thousand, two hundred twenty-five".