197419812 has 12 divisors (see below), whose sum is σ = 460646256. Its totient is φ = 65806600.

The previous prime is 197419769. The next prime is 197419843. The reversal of 197419812 is 218914791.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8225814 + ... + 8225837.

It is an arithmetic number, because the mean of its divisors is an integer number (38387188).

Almost surely, 2^197419812 is an apocalyptic number.

197419812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

197419812 is an abundant number, since it is smaller than the sum of its proper divisors (263226444).

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

197419812 is a wasteful number, since it uses less digits than its factorization.

197419812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16451658 (or 16451656 counting only the distinct ones).

The product of its digits is 36288, while the sum is 42.

The square root of 197419812 is about 14050.6160719023. The cubic root of 197419812 is about 582.2778163725.

The spelling of 197419812 in words is "one hundred ninety-seven million, four hundred nineteen thousand, eight hundred twelve".