30270649 has 4 divisors (see below), whose sum is σ = 30305664. Its totient is φ = 30235636.

The previous prime is 30270623. The next prime is 30270671. The reversal of 30270649 is 94607203.

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 a de Polignac number, because none of the positive numbers 2^k-30270649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30270649.

It is not an unprimeable number, because it can be changed into a prime (30270749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16177 + ... + 17950.

It is an arithmetic number, because the mean of its divisors is an integer number (7576416).

Almost surely, 2^30270649 is an apocalyptic number.

It is an amenable number.

30270649 is a deficient number, since it is larger than the sum of its proper divisors (35015).

30270649 is an equidigital number, since it uses as much as digits as its factorization.

30270649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35014.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30270649 is about 5501.8768615810. The cubic root of 30270649 is about 311.6548650372.

The spelling of 30270649 in words is "thirty million, two hundred seventy thousand, six hundred forty-nine".