30672648 has 64 divisors (see below), whose sum is σ = 85732800. Its totient is φ = 10160640.

The previous prime is 30672643. The next prime is 30672673. The reversal of 30672648 is 84627603.

30672648 is a `hidden beast` number, since 3 + 0 + 6 + 7 + 2 + 648 = 666.

It is a super-2 number, since 2×30672648² = 1881622670663808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30672643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45240 + ... + 45912.

It is an arithmetic number, because the mean of its divisors is an integer number (1339575).

Almost surely, 2^30672648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30672648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42866400).

30672648 is an abundant number, since it is smaller than the sum of its proper divisors (55060152).

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

30672648 is a wasteful number, since it uses less digits than its factorization.

30672648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899 (or 889 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 30672648 is about 5538.2892665515. The cubic root of 30672648 is about 313.0284111710.

The spelling of 30672648 in words is "thirty million, six hundred seventy-two thousand, six hundred forty-eight".