404456197 has 16 divisors (see below), whose sum is σ = 445658112. Its totient is φ = 365497600.

The previous prime is 404456191. The next prime is 404456233. The reversal of 404456197 is 791654404.

It is a cyclic number.

It is not a de Polignac number, because 404456197 - 2³ = 404456189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404456191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37572 + ... + 47122.

It is an arithmetic number, because the mean of its divisors is an integer number (27853632).

Almost surely, 2^404456197 is an apocalyptic number.

404456197 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

404456197 is a deficient number, since it is larger than the sum of its proper divisors (41201915).

404456197 is a wasteful number, since it uses less digits than its factorization.

404456197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 404456197 is about 20111.0963649424. The cubic root of 404456197 is about 739.5323298967.

The spelling of 404456197 in words is "four hundred four million, four hundred fifty-six thousand, one hundred ninety-seven".