197233920 has 288 divisors, whose sum is σ = 755462400. Its totient is φ = 48439296.

The previous prime is 197233909. The next prime is 197233943. The reversal of 197233920 is 29332791.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 449061 + ... + 449499.

Almost surely, 2^197233920 is an apocalyptic number.

197233920 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 197233920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (377731200).

197233920 is an abundant number, since it is smaller than the sum of its proper divisors (558228480).

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

197233920 is a wasteful number, since it uses less digits than its factorization.

197233920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 197233920 is about 14043.9994303617. Note that the first 3 decimals coincide. The cubic root of 197233920 is about 582.0949999031.

The spelling of 197233920 in words is "one hundred ninety-seven million, two hundred thirty-three thousand, nine hundred twenty".