30533836 has 24 divisors (see below), whose sum is σ = 59557680. Its totient is φ = 13612032.

The previous prime is 30533821. The next prime is 30533837. The reversal of 30533836 is 63833503.

It is a junction number, because it is equal to n+sod(n) for n = 30533798 and 30533807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30533837) 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 7 ways as a sum of consecutive naturals, for example, 10525 + ... + 13108.

It is an arithmetic number, because the mean of its divisors is an integer number (2481570).

Almost surely, 2^30533836 is an apocalyptic number.

It is an amenable number.

30533836 is a deficient number, since it is larger than the sum of its proper divisors (29023844).

30533836 is a wasteful number, since it uses less digits than its factorization.

30533836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23673 (or 23671 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 30533836 is about 5525.7430269603. The cubic root of 30533836 is about 312.5554836951. Note that the first 3 decimals are identical.

It can be divided in two parts, 3053 and 3836, that added together give a square (6889 = 83²).

The spelling of 30533836 in words is "thirty million, five hundred thirty-three thousand, eight hundred thirty-six".