30805396 has 12 divisors (see below), whose sum is σ = 54142452. Its totient is φ = 15336128.

The previous prime is 30805393. The next prime is 30805417. The reversal of 30805396 is 69350803.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 14516100 = 4036^2 + 3810^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30805393) 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, 15595 + ... + 17458.

It is an arithmetic number, because the mean of its divisors is an integer number (4511871).

Almost surely, 2^30805396 is an apocalyptic number.

It is an amenable number.

30805396 is a deficient number, since it is larger than the sum of its proper divisors (23337056).

30805396 is a wasteful number, since it uses less digits than its factorization.

30805396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33290 (or 33288 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 30805396 is about 5550.2608947688. The cubic root of 30805396 is about 313.4793459613.

The spelling of 30805396 in words is "thirty million, eight hundred five thousand, three hundred ninety-six".