30648472 has 16 divisors (see below), whose sum is σ = 57760560. Its totient is φ = 15245664.

The previous prime is 30648461. The next prime is 30648473. The reversal of 30648472 is 27484603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30648473) 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, 8148 + ... + 11299.

It is an arithmetic number, because the mean of its divisors is an integer number (3610035).

Almost surely, 2^30648472 is an apocalyptic number.

It is an amenable number.

30648472 is a deficient number, since it is larger than the sum of its proper divisors (27112088).

30648472 is a wasteful number, since it uses less digits than its factorization.

30648472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650 (or 19646 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 30648472 is about 5536.1062128539. The cubic root of 30648472 is about 312.9461471722.

The spelling of 30648472 in words is "thirty million, six hundred forty-eight thousand, four hundred seventy-two".