30371148 has 18 divisors (see below), whose sum is σ = 76771604. Its totient is φ = 10123704.

The previous prime is 30371147. The next prime is 30371183. The reversal of 30371148 is 84117303.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (30371147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421786 + ... + 421857.

Almost surely, 2^30371148 is an apocalyptic number.

It is an amenable number.

30371148 is an abundant number, since it is smaller than the sum of its proper divisors (46400456).

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

30371148 is a wasteful number, since it uses less digits than its factorization.

30371148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843653 (or 843648 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 30371148 is about 5511.0024496456. The cubic root of 30371148 is about 311.9993836280. Note that the first 3 decimals are identical.

Subtracting from 30371148 its sum of digits (27), we obtain a square (30371121 = 5511²).

The spelling of 30371148 in words is "thirty million, three hundred seventy-one thousand, one hundred forty-eight".