404728973 has 8 divisors (see below), whose sum is σ = 442777536. Its totient is φ = 366889600.

The previous prime is 404728927. The next prime is 404728981. The reversal of 404728973 is 379827404.

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

It is not a de Polignac number, because 404728973 - 2¹⁴ = 404712589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404728073) 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, 48233 + ... + 55998.

It is an arithmetic number, because the mean of its divisors is an integer number (55347192).

Almost surely, 2^404728973 is an apocalyptic number.

It is an amenable number.

404728973 is a deficient number, since it is larger than the sum of its proper divisors (38048563).

404728973 is a wasteful number, since it uses less digits than its factorization.

404728973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104595.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 404728973 is about 20117.8769506129. The cubic root of 404728973 is about 739.6985459495.

The spelling of 404728973 in words is "four hundred four million, seven hundred twenty-eight thousand, nine hundred seventy-three".