197493842 has 16 divisors (see below), whose sum is σ = 364604352. Its totient is φ = 78129360.

The previous prime is 197493781. The next prime is 197493851. The reversal of 197493842 is 248394791.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542384 + ... + 542747.

It is an arithmetic number, because the mean of its divisors is an integer number (22787772).

Almost surely, 2^197493842 is an apocalyptic number.

197493842 is a deficient number, since it is larger than the sum of its proper divisors (167110510).

197493842 is a wasteful number, since it uses less digits than its factorization.

197493842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085153.

The product of its digits is 435456, while the sum is 47.

The square root of 197493842 is about 14053.2502290395. The cubic root of 197493842 is about 582.3505896154.

The spelling of 197493842 in words is "one hundred ninety-seven million, four hundred ninety-three thousand, eight hundred forty-two".