30197472 has 96 divisors (see below), whose sum is σ = 83543040. Its totient is φ = 9538560.

The previous prime is 30197471. The next prime is 30197473. The reversal of 30197472 is 27479103.

It is an interprime number because it is at equal distance from previous prime (30197471) and next prime (30197473).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30197471) 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, 217179 + ... + 217317.

It is an arithmetic number, because the mean of its divisors is an integer number (870240).

Almost surely, 2^30197472 is an apocalyptic number.

30197472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30197472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41771520).

30197472 is an abundant number, since it is smaller than the sum of its proper divisors (53345568).

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

30197472 is a wasteful number, since it uses less digits than its factorization.

30197472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 30197472 is about 5495.2226524500. Note that the first 3 decimals coincide. The cubic root of 30197472 is about 311.4035283929.

The spelling of 30197472 in words is "thirty million, one hundred ninety-seven thousand, four hundred seventy-two".