404942870 has 8 divisors (see below), whose sum is σ = 728897184. Its totient is φ = 161977144.

The previous prime is 404942869. The next prime is 404942887. The reversal of 404942870 is 78249404.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20247134 + ... + 20247153.

It is an arithmetic number, because the mean of its divisors is an integer number (91112148).

Almost surely, 2^404942870 is an apocalyptic number.

404942870 is a deficient number, since it is larger than the sum of its proper divisors (323954314).

404942870 is a wasteful number, since it uses less digits than its factorization.

404942870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40494294.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 404942870 is about 20123.1923411769. The cubic root of 404942870 is about 739.8288318494.

The spelling of 404942870 in words is "four hundred four million, nine hundred forty-two thousand, eight hundred seventy".