404988193 has 8 divisors (see below), whose sum is σ = 408034368. Its totient is φ = 401949744.

The previous prime is 404988179. The next prime is 404988223. The reversal of 404988193 is 391889404.

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 404988193 - 2²⁵ = 371433761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404986193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141030 + ... + 143872.

It is an arithmetic number, because the mean of its divisors is an integer number (51004296).

Almost surely, 2^404988193 is an apocalyptic number.

It is an amenable number.

404988193 is a deficient number, since it is larger than the sum of its proper divisors (3046175).

404988193 is a wasteful number, since it uses less digits than its factorization.

404988193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 404988193 is about 20124.3184480866. The cubic root of 404988193 is about 739.8564324599.

The spelling of 404988193 in words is "four hundred four million, nine hundred eighty-eight thousand, one hundred ninety-three".