30723248 has 10 divisors (see below), whose sum is σ = 59526324. Its totient is φ = 15361616.

The previous prime is 30723241. The next prime is 30723269. The reversal of 30723248 is 84232703.

It is a self number, because there is not a number n which added to its sum of digits gives 30723248.

It is not an unprimeable number, because it can be changed into a prime (30723241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 960086 + ... + 960117.

Almost surely, 2^30723248 is an apocalyptic number.

It is an amenable number.

30723248 is a deficient number, since it is larger than the sum of its proper divisors (28803076).

30723248 is a wasteful number, since it uses less digits than its factorization.

30723248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920211 (or 1920205 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30723248 is about 5542.8555817376. The cubic root of 30723248 is about 313.2004486563.

The spelling of 30723248 in words is "thirty million, seven hundred twenty-three thousand, two hundred forty-eight".