404651023 has 4 divisors (see below), whose sum is σ = 462458320. Its totient is φ = 346843728.

The previous prime is 404650997. The next prime is 404651063. The reversal of 404651023 is 320156404.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 404651023 - 2⁵ = 404650991 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404651063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28903638 + ... + 28903651.

It is an arithmetic number, because the mean of its divisors is an integer number (115614580).

Almost surely, 2^404651023 is an apocalyptic number.

404651023 is a deficient number, since it is larger than the sum of its proper divisors (57807297).

404651023 is an equidigital number, since it uses as much as digits as its factorization.

404651023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57807296.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 404651023 is about 20115.9395256597. The cubic root of 404651023 is about 739.6510547413.

The spelling of 404651023 in words is "four hundred four million, six hundred fifty-one thousand, twenty-three".