197924660 has 48 divisors (see below), whose sum is σ = 435044736. Its totient is φ = 75495552.

The previous prime is 197924647. The next prime is 197924663. The reversal of 197924660 is 66429791.

197924660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×197924660² = 78348342072231200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197924663) 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, 269654 + ... + 270386.

It is an arithmetic number, because the mean of its divisors is an integer number (9063432).

Almost surely, 2^197924660 is an apocalyptic number.

197924660 is a gapful number since it is divisible by the number (10) 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 197924660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217522368).

197924660 is an abundant number, since it is smaller than the sum of its proper divisors (237120076).

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

197924660 is a wasteful number, since it uses less digits than its factorization.

With its successor (197924661) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1350).

197924660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 197924660 is about 14068.5699344319. The cubic root of 197924660 is about 582.7737334530.

The spelling of 197924660 in words is "one hundred ninety-seven million, nine hundred twenty-four thousand, six hundred sixty".