404000785 has 8 divisors (see below), whose sum is σ = 484917696. Its totient is φ = 323122800.

The previous prime is 404000783. The next prime is 404000803. The reversal of 404000785 is 587000404.

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

It is not a de Polignac number, because 404000785 - 2¹ = 404000783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404000783) 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, 23310 + ... + 36760.

It is an arithmetic number, because the mean of its divisors is an integer number (60614712).

Almost surely, 2^404000785 is an apocalyptic number.

It is an amenable number.

404000785 is a deficient number, since it is larger than the sum of its proper divisors (80916911).

404000785 is a wasteful number, since it uses less digits than its factorization.

404000785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 404000785 is about 20099.7707698372. The cubic root of 404000785 is about 739.2546579784.

The spelling of 404000785 in words is "four hundred four million, seven hundred eighty-five", and thus it is an aban number.