406819923 has 8 divisors (see below), whose sum is σ = 545457600. Its totient is φ = 269697768.

The previous prime is 406819909. The next prime is 406819967. The reversal of 406819923 is 329918604.

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

It is not a de Polignac number, because 406819923 - 2¹³ = 406811731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406819723) 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, 378253 + ... + 379326.

It is an arithmetic number, because the mean of its divisors is an integer number (68182200).

Almost surely, 2^406819923 is an apocalyptic number.

406819923 is a deficient number, since it is larger than the sum of its proper divisors (138637677).

406819923 is a wasteful number, since it uses less digits than its factorization.

406819923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757761.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 406819923 is about 20169.7774653068. Note that the first 3 decimals coincide. The cubic root of 406819923 is about 740.9701926340.

The spelling of 406819923 in words is "four hundred six million, eight hundred nineteen thousand, nine hundred twenty-three".