406466 has 4 divisors (see below), whose sum is σ = 609702. Its totient is φ = 203232.

The previous prime is 406447. The next prime is 406481. The reversal of 406466 is 664604.

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

It can be written as a sum of positive squares in only one way, i.e., 354025 + 52441 = 595^2 + 229^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101615 + ... + 101618.

2⁴⁰⁶⁴⁶⁶ is an apocalyptic number.

406466 is a deficient number, since it is larger than the sum of its proper divisors (203236).

406466 is a wasteful number, since it uses less digits than its factorization.

406466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203235.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 406466 is about 637.5468610228. The cubic root of 406466 is about 74.0755255209.

The spelling of 406466 in words is "four hundred six thousand, four hundred sixty-six".