30940225 has 12 divisors (see below), whose sum is σ = 38492080. Its totient is φ = 24670800.

The previous prime is 30940213. The next prime is 30940243. The reversal of 30940225 is 52204903.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-30940225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 30940225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6406 + ... + 10144.

Almost surely, 2^30940225 is an apocalyptic number.

It is an amenable number.

30940225 is a deficient number, since it is larger than the sum of its proper divisors (7551855).

30940225 is a wasteful number, since it uses less digits than its factorization.

30940225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4075 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30940225 is about 5562.3938192113. The cubic root of 30940225 is about 313.9360256160.

The spelling of 30940225 in words is "thirty million, nine hundred forty thousand, two hundred twenty-five".