404633 has 4 divisors (see below), whose sum is σ = 406308. Its totient is φ = 402960.

The previous prime is 404597. The next prime is 404671. The reversal of 404633 is 336404.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 104329 = 548^2 + 323^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404633 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (404693) 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, 398 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (101577).

2⁴⁰⁴⁶³³ is an apocalyptic number.

It is an amenable number.

404633 is a deficient number, since it is larger than the sum of its proper divisors (1675).

404633 is a wasteful number, since it uses less digits than its factorization.

404633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 404633 is about 636.1076952844. The cubic root of 404633 is about 73.9640073321.

The spelling of 404633 in words is "four hundred four thousand, six hundred thirty-three".