400466 has 16 divisors (see below), whose sum is σ = 665280. Its totient is φ = 179280.

The previous prime is 400457. The next prime is 400471. The reversal of 400466 is 664004.

400466 = T₁₃₉ + T₁₄₀ + ... + T₁₇₁.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2315 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (41580).

2⁴⁰⁰⁴⁶⁶ is an apocalyptic number.

400466 is a deficient number, since it is larger than the sum of its proper divisors (264814).

400466 is a wasteful number, since it uses less digits than its factorization.

400466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400466 is about 632.8238301455. The cubic root of 400466 is about 73.7092315134.

The spelling of 400466 in words is "four hundred thousand, four hundred sixty-six".