30308148 has 48 divisors (see below), whose sum is σ = 84624960. Its totient is φ = 9325152.

The previous prime is 30308147. The next prime is 30308167. The reversal of 30308148 is 84180303.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30308147) 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, 9390 + ... + 12197.

It is an arithmetic number, because the mean of its divisors is an integer number (1763020).

Almost surely, 2^30308148 is an apocalyptic number.

It is an amenable number.

30308148 is an abundant number, since it is smaller than the sum of its proper divisors (54316812).

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

30308148 is a wasteful number, since it uses less digits than its factorization.

30308148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21613 (or 21605 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 30308148 is about 5505.2836439188. The cubic root of 30308148 is about 311.7835036544.

The spelling of 30308148 in words is "thirty million, three hundred eight thousand, one hundred forty-eight".