30245689 has 4 divisors (see below), whose sum is σ = 30372480. Its totient is φ = 30118900.

The previous prime is 30245681. The next prime is 30245711. The reversal of 30245689 is 98654203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30245689 - 2³ = 30245681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30245681) 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, 63037 + ... + 63514.

It is an arithmetic number, because the mean of its divisors is an integer number (7593120).

Almost surely, 2^30245689 is an apocalyptic number.

It is an amenable number.

30245689 is a deficient number, since it is larger than the sum of its proper divisors (126791).

30245689 is a wasteful number, since it uses less digits than its factorization.

30245689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126790.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 30245689 is about 5499.6080769451. The cubic root of 30245689 is about 311.5691819885.

The spelling of 30245689 in words is "thirty million, two hundred forty-five thousand, six hundred eighty-nine".