30572148 has 48 divisors (see below), whose sum is σ = 75096000. Its totient is φ = 9666048.

The previous prime is 30572141. The next prime is 30572173. The reversal of 30572148 is 84127503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30572141) 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, 19788 + ... + 21276.

It is an arithmetic number, because the mean of its divisors is an integer number (1564500).

Almost surely, 2^30572148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30572148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37548000).

30572148 is an abundant number, since it is smaller than the sum of its proper divisors (44523852).

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

30572148 is a wasteful number, since it uses less digits than its factorization.

30572148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1582 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 30572148 is about 5529.2086233023. The cubic root of 30572148 is about 312.6861542604.

The spelling of 30572148 in words is "thirty million, five hundred seventy-two thousand, one hundred forty-eight".