30240907 has 4 divisors (see below), whose sum is σ = 30655240. Its totient is φ = 29826576.

The previous prime is 30240893. The next prime is 30240923. The reversal of 30240907 is 70904203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70904203 = 313 ⋅226531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30240907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30240307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207057 + ... + 207202.

It is an arithmetic number, because the mean of its divisors is an integer number (7663810).

Almost surely, 2^30240907 is an apocalyptic number.

30240907 is a deficient number, since it is larger than the sum of its proper divisors (414333).

30240907 is an equidigital number, since it uses as much as digits as its factorization.

30240907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414332.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 30240907 is about 5499.1733015063. The cubic root of 30240907 is about 311.5527608895.

It can be divided in two parts, 302 and 40907, that added together give a square (41209 = 203²).

The spelling of 30240907 in words is "thirty million, two hundred forty thousand, nine hundred seven".