197340728 has 64 divisors (see below), whose sum is σ = 409436160. Its totient is φ = 88615296.

The previous prime is 197340719. The next prime is 197340739. The reversal of 197340728 is 827043791.

197340728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884825 + ... + 885047.

It is an arithmetic number, because the mean of its divisors is an integer number (6397440).

Almost surely, 2^197340728 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 197340728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204718080).

197340728 is an abundant number, since it is smaller than the sum of its proper divisors (212095432).

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

197340728 is a wasteful number, since it uses less digits than its factorization.

197340728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 197340728 is about 14047.8015361835. The cubic root of 197340728 is about 582.2000548270.

The spelling of 197340728 in words is "one hundred ninety-seven million, three hundred forty thousand, seven hundred twenty-eight".