404146 has 8 divisors (see below), whose sum is σ = 608940. Its totient is φ = 201168.

The previous prime is 404123. The next prime is 404161. The reversal of 404146 is 641404.

It can be written as a sum of positive squares in 2 ways, for example, as 378225 + 25921 = 615^2 + 161^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540 + ... + 1048.

2⁴⁰⁴¹⁴⁶ is an apocalyptic number.

404146 is a deficient number, since it is larger than the sum of its proper divisors (204794).

404146 is a wasteful number, since it uses less digits than its factorization.

404146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404146 is about 635.7247832199. The cubic root of 404146 is about 73.9343220517.

It can be divided in two parts, 40 and 4146, that added together give a triangular number (4186 = T₉₁).

The spelling of 404146 in words is "four hundred four thousand, one hundred forty-six".