30953936 has 20 divisors (see below), whose sum is σ = 64587012. Its totient is φ = 14286336.

The previous prime is 30953927. The next prime is 30953939. The reversal of 30953936 is 63935903.

It can be written as a sum of positive squares in 2 ways, for example, as 10523536 + 20430400 = 3244^2 + 4520^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30953936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30953939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74201 + ... + 74616.

Almost surely, 2^30953936 is an apocalyptic number.

It is an amenable number.

30953936 is an abundant number, since it is smaller than the sum of its proper divisors (33633076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30953936 is a wasteful number, since it uses less digits than its factorization.

30953936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148838 (or 148832 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 38.

The square root of 30953936 is about 5563.6261556650. The cubic root of 30953936 is about 313.9823918074.

It can be divided in two parts, 309 and 53936, that added together give a palindrome (54245).

The spelling of 30953936 in words is "thirty million, nine hundred fifty-three thousand, nine hundred thirty-six".