404870851 has 8 divisors (see below), whose sum is σ = 504774144. Its totient is φ = 315483720.

The previous prime is 404870797. The next prime is 404870857. The reversal of 404870851 is 158078404.

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 404870851 - 2¹¹ = 404868803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404870851.

It is not an unprimeable number, because it can be changed into a prime (404870857) 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, 2628955 + ... + 2629108.

It is an arithmetic number, because the mean of its divisors is an integer number (63096768).

Almost surely, 2^404870851 is an apocalyptic number.

404870851 is a deficient number, since it is larger than the sum of its proper divisors (99903293).

404870851 is a wasteful number, since it uses less digits than its factorization.

404870851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258081.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 404870851 is about 20121.4028089495. The cubic root of 404870851 is about 739.7849697843.

The spelling of 404870851 in words is "four hundred four million, eight hundred seventy thousand, eight hundred fifty-one".