30538148 has 6 divisors (see below), whose sum is σ = 53441766. Its totient is φ = 15269072.

The previous prime is 30538147. The next prime is 30538159. The reversal of 30538148 is 84183503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27269284 + 3268864 = 5222^2 + 1808^2 .

It is not an unprimeable number, because it can be changed into a prime (30538141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3817265 + ... + 3817272.

It is an arithmetic number, because the mean of its divisors is an integer number (8906961).

Almost surely, 2^30538148 is an apocalyptic number.

It is an amenable number.

30538148 is a deficient number, since it is larger than the sum of its proper divisors (22903618).

30538148 is a wasteful number, since it uses less digits than its factorization.

30538148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634541 (or 7634539 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 30538148 is about 5526.1331869581. The cubic root of 30538148 is about 312.5701960709.

The spelling of 30538148 in words is "thirty million, five hundred thirty-eight thousand, one hundred forty-eight".