404790 has 32 divisors (see below), whose sum is σ = 988416. Its totient is φ = 106080.

The previous prime is 404783. The next prime is 404819. The reversal of 404790 is 97404.

404790 = T₁₁₁ + T₁₁₂ + ... + T₁₅₅.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 404790.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3025 + ... + 3155.

It is an arithmetic number, because the mean of its divisors is an integer number (30888).

2⁴⁰⁴⁷⁹⁰ is an apocalyptic number.

404790 is an abundant number, since it is smaller than the sum of its proper divisors (583626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404790 is a wasteful number, since it uses less digits than its factorization.

404790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 404790 is about 636.2310900923. The cubic root of 404790 is about 73.9735722527.

The spelling of 404790 in words is "four hundred four thousand, seven hundred ninety".