30809396 has 6 divisors (see below), whose sum is σ = 53916450. Its totient is φ = 15404696.

The previous prime is 30809369. The next prime is 30809411. The reversal of 30809396 is 69390803.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19044496 + 11764900 = 4364^2 + 3430^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3851171 + ... + 3851178.

It is an arithmetic number, because the mean of its divisors is an integer number (8986075).

Almost surely, 2^30809396 is an apocalyptic number.

It is an amenable number.

30809396 is a deficient number, since it is larger than the sum of its proper divisors (23107054).

30809396 is a wasteful number, since it uses less digits than its factorization.

30809396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7702353 (or 7702351 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 30809396 is about 5550.6212264935. The cubic root of 30809396 is about 313.4929135314.

The spelling of 30809396 in words is "thirty million, eight hundred nine thousand, three hundred ninety-six".