404023966 has 8 divisors (see below), whose sum is σ = 607281840. Its totient is φ = 201596688.

The previous prime is 404023931. The next prime is 404023967. The reversal of 404023966 is 669320404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404023967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206431 + ... + 208378.

It is an arithmetic number, because the mean of its divisors is an integer number (75910230).

Almost surely, 2^404023966 is an apocalyptic number.

404023966 is a deficient number, since it is larger than the sum of its proper divisors (203257874).

404023966 is a wasteful number, since it uses less digits than its factorization.

404023966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415298.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 404023966 is about 20100.3474099330. The cubic root of 404023966 is about 739.2687968408.

The spelling of 404023966 in words is "four hundred four million, twenty-three thousand, nine hundred sixty-six".