30648532 has 12 divisors (see below), whose sum is σ = 53775540. Its totient is φ = 15284096.

The previous prime is 30648523. The next prime is 30648571. The reversal of 30648532 is 23584603.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 25060036 = 2364^2 + 5006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30648494 and 30648503.

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 in 3 ways as a sum of consecutive naturals, for example, 8293 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (4481295).

Almost surely, 2^30648532 is an apocalyptic number.

It is an amenable number.

30648532 is a deficient number, since it is larger than the sum of its proper divisors (23127008).

30648532 is a wasteful number, since it uses less digits than its factorization.

30648532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20090 (or 20088 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 30648532 is about 5536.1116318225. Note that the first 3 decimals coincide. The cubic root of 30648532 is about 312.9463513885.

The spelling of 30648532 in words is "thirty million, six hundred forty-eight thousand, five hundred thirty-two".