30320669 has 4 divisors (see below), whose sum is σ = 30366396. Its totient is φ = 30274944.

The previous prime is 30320663. The next prime is 30320681. The reversal of 30320669 is 96602303.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96602303 = 7 ⋅13800329.

It can be written as a sum of positive squares in 2 ways, for example, as 15405625 + 14915044 = 3925^2 + 3862^2 .

It is a cyclic number.

It is not a de Polignac number, because 30320669 - 2¹⁶ = 30255133 is a prime.

It is a super-2 number, since 2×30320669² = 1838685937215122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320663) 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, 21854 + ... + 23199.

It is an arithmetic number, because the mean of its divisors is an integer number (7591599).

Almost surely, 2^30320669 is an apocalyptic number.

It is an amenable number.

30320669 is a deficient number, since it is larger than the sum of its proper divisors (45727).

30320669 is an equidigital number, since it uses as much as digits as its factorization.

30320669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45726.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 30320669 is about 5506.4207067750. The cubic root of 30320669 is about 311.8264327460.

The spelling of 30320669 in words is "thirty million, three hundred twenty thousand, six hundred sixty-nine".