404961 has 8 divisors (see below), whose sum is σ = 563520. Its totient is φ = 258192.

The previous prime is 404959. The next prime is 404969. The reversal of 404961 is 169404.

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

It is not a de Polignac number, because 404961 - 2¹ = 404959 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404961.

It is not an unprimeable number, because it can be changed into a prime (404969) 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, 2866 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (70440).

2⁴⁰⁴⁹⁶¹ is an apocalyptic number.

It is an amenable number.

404961 is a deficient number, since it is larger than the sum of its proper divisors (158559).

404961 is a wasteful number, since it uses less digits than its factorization.

404961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 404961 is about 636.3654610363. The cubic root of 404961 is about 73.9839872828.

The spelling of 404961 in words is "four hundred four thousand, nine hundred sixty-one".