30148472 has 8 divisors (see below), whose sum is σ = 56528400. Its totient is φ = 15074232.

The previous prime is 30148453. The next prime is 30148493. The reversal of 30148472 is 27484103.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1884272 + ... + 1884287.

It is an arithmetic number, because the mean of its divisors is an integer number (7066050).

Almost surely, 2^30148472 is an apocalyptic number.

It is an amenable number.

30148472 is a deficient number, since it is larger than the sum of its proper divisors (26379928).

30148472 is a wasteful number, since it uses less digits than its factorization.

30148472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768565 (or 3768561 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 30148472 is about 5490.7624242905. The cubic root of 30148472 is about 311.2350039817.

The spelling of 30148472 in words is "thirty million, one hundred forty-eight thousand, four hundred seventy-two".