197240456 has 32 divisors (see below), whose sum is σ = 441037440. Its totient is φ = 80855808.

The previous prime is 197240447. The next prime is 197240467. The reversal of 197240456 is 654042791.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 75281 + ... + 77856.

It is an arithmetic number, because the mean of its divisors is an integer number (13782420).

Almost surely, 2^197240456 is an apocalyptic number.

It is an amenable number.

197240456 is an abundant number, since it is smaller than the sum of its proper divisors (243796984).

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

197240456 is a wasteful number, since it uses less digits than its factorization.

197240456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153173 (or 153169 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 197240456 is about 14044.2321256806. The cubic root of 197240456 is about 582.1014297148.

The spelling of 197240456 in words is "one hundred ninety-seven million, two hundred forty thousand, four hundred fifty-six".