30148518 has 16 divisors (see below), whose sum is σ = 61286256. Its totient is φ = 9884640.

The previous prime is 30148507. The next prime is 30148519. The reversal of 30148518 is 81584103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30148519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40821 + ... + 41552.

It is an arithmetic number, because the mean of its divisors is an integer number (3830391).

Almost surely, 2^30148518 is an apocalyptic number.

30148518 is an abundant number, since it is smaller than the sum of its proper divisors (31137738).

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

30148518 is a wasteful number, since it uses less digits than its factorization.

30148518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82439.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 30148518 is about 5490.7666131425. The cubic root of 30148518 is about 311.2351622739.

The spelling of 30148518 in words is "thirty million, one hundred forty-eight thousand, five hundred eighteen".