197290422 has 48 divisors (see below), whose sum is σ = 505383840. Its totient is φ = 54423936.

The previous prime is 197290421. The next prime is 197290427. The reversal of 197290422 is 224092791.

It is a super-2 number, since 2×197290422² = 77847021225876168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197290421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23343 + ... + 30650.

It is an arithmetic number, because the mean of its divisors is an integer number (10528830).

Almost surely, 2^197290422 is an apocalyptic number.

197290422 is an abundant number, since it is smaller than the sum of its proper divisors (308093418).

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

197290422 is a wasteful number, since it uses less digits than its factorization.

197290422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54037 (or 54034 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 197290422 is about 14046.0108927766. The cubic root of 197290422 is about 582.1505792401.

The spelling of 197290422 in words is "one hundred ninety-seven million, two hundred ninety thousand, four hundred twenty-two".