197980250 has 32 divisors (see below), whose sum is σ = 399134736. Its totient is φ = 73099200.

The previous prime is 197980217. The next prime is 197980253. The reversal of 197980250 is 52089791.

It can be written as a sum of positive squares in 8 ways, for example, as 12666481 + 185313769 = 3559^2 + 13613^2 .

It is a junction number, because it is equal to n+sod(n) for n = 197980198 and 197980207.

It is not an unprimeable number, because it can be changed into a prime (197980253) 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, 27209 + ... + 33708.

Almost surely, 2^197980250 is an apocalyptic number.

197980250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197980250 is an abundant number, since it is smaller than the sum of its proper divisors (201154486).

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

197980250 is a wasteful number, since it uses less digits than its factorization.

197980250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60947 (or 60937 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 197980250 is about 14070.5454762777. The cubic root of 197980250 is about 582.8282884864.

The spelling of 197980250 in words is "one hundred ninety-seven million, nine hundred eighty thousand, two hundred fifty".