30040225 has 12 divisors (see below), whose sum is σ = 37319040. Its totient is φ = 23987600.

The previous prime is 30040217. The next prime is 30040229. The reversal of 30040225 is 52204003.

It is not a de Polignac number, because 30040225 - 2³ = 30040217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30040199 and 30040208.

It is not an unprimeable number, because it can be changed into a prime (30040229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22116 + ... + 23434.

It is an arithmetic number, because the mean of its divisors is an integer number (3109920).

Almost surely, 2^30040225 is an apocalyptic number.

It is an amenable number.

30040225 is a deficient number, since it is larger than the sum of its proper divisors (7278815).

30040225 is a wasteful number, since it uses less digits than its factorization.

30040225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30040225 is about 5480.8963682960. The cubic root of 30040225 is about 310.8620646023.

Adding to 30040225 its reverse (52204003), we get a palindrome (82244228).

The spelling of 30040225 in words is "thirty million, forty thousand, two hundred twenty-five".