197022720 has 176 divisors, whose sum is σ = 641415168. Its totient is φ = 51609600.

The previous prime is 197022719. The next prime is 197022733. The reversal of 197022720 is 27220791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 1551297 + ... + 1551423.

Almost surely, 2^197022720 is an apocalyptic number.

197022720 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 197022720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320707584).

197022720 is an abundant number, since it is smaller than the sum of its proper divisors (444392448).

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

197022720 is a wasteful number, since it uses less digits than its factorization.

197022720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 197022720 is about 14036.4781907714. The cubic root of 197022720 is about 581.8871547019.

It can be divided in two parts, 19702 and 2720, that added together give a palindrome (22422).

The spelling of 197022720 in words is "one hundred ninety-seven million, twenty-two thousand, seven hundred twenty".