404042197 has 8 divisors (see below), whose sum is σ = 435614816. Its totient is φ = 372539952.

The previous prime is 404042159. The next prime is 404042203. The reversal of 404042197 is 791240404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404042197 - 2⁷ = 404042069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404022197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5343 + ... + 28924.

It is an arithmetic number, because the mean of its divisors is an integer number (54451852).

Almost surely, 2^404042197 is an apocalyptic number.

It is an amenable number.

404042197 is a deficient number, since it is larger than the sum of its proper divisors (31572619).

404042197 is a wasteful number, since it uses less digits than its factorization.

404042197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35187.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 404042197 is about 20100.8009044416. The cubic root of 404042197 is about 739.2799161537.

The spelling of 404042197 in words is "four hundred four million, forty-two thousand, one hundred ninety-seven".