30818052 has 18 divisors (see below), whose sum is σ = 77901278. Its totient is φ = 10272672.

The previous prime is 30818023. The next prime is 30818071. The reversal of 30818052 is 25081803.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26873856 + 3944196 = 5184^2 + 1986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 in 5 ways as a sum of consecutive naturals, for example, 427993 + ... + 428064.

Almost surely, 2^30818052 is an apocalyptic number.

It is an amenable number.

30818052 is an abundant number, since it is smaller than the sum of its proper divisors (47083226).

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

30818052 is a wasteful number, since it uses less digits than its factorization.

30818052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856067 (or 856062 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 30818052 is about 5551.4009042763. The cubic root of 30818052 is about 313.5222697335.

Adding to 30818052 its reverse (25081803), we get a palindrome (55899855).

The spelling of 30818052 in words is "thirty million, eight hundred eighteen thousand, fifty-two".