30669505 has 8 divisors (see below), whose sum is σ = 37072872. Its totient is φ = 24355968.

The previous prime is 30669503. The next prime is 30669533. The reversal of 30669505 is 50596603.

It can be written as a sum of positive squares in 4 ways, for example, as 5948721 + 24720784 = 2439^2 + 4972^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30669505 - 2¹ = 30669503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30669503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21702 + ... + 23071.

It is an arithmetic number, because the mean of its divisors is an integer number (4634109).

Almost surely, 2^30669505 is an apocalyptic number.

It is an amenable number.

30669505 is a deficient number, since it is larger than the sum of its proper divisors (6403367).

30669505 is a wasteful number, since it uses less digits than its factorization.

30669505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44915.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 30669505 is about 5538.0055074007. The cubic root of 30669505 is about 313.0177188879.

The spelling of 30669505 in words is "thirty million, six hundred sixty-nine thousand, five hundred five".