197230990 has 32 divisors (see below), whose sum is σ = 399790080. Its totient is φ = 69405600.

The previous prime is 197230987. The next prime is 197231009. The reversal of 197230990 is 99032791.

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, 25510 + ... + 32329.

It is an arithmetic number, because the mean of its divisors is an integer number (12493440).

Almost surely, 2^197230990 is an apocalyptic number.

197230990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197230990 is an abundant number, since it is smaller than the sum of its proper divisors (202559090).

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

197230990 is a wasteful number, since it uses less digits than its factorization.

197230990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57888.

The product of its (nonzero) digits is 30618, while the sum is 40.

The square root of 197230990 is about 14043.8951149601. The cubic root of 197230990 is about 582.0921174598.

The spelling of 197230990 in words is "one hundred ninety-seven million, two hundred thirty thousand, nine hundred ninety".