406354 has 8 divisors (see below), whose sum is σ = 656460. Its totient is φ = 187536.

The previous prime is 406349. The next prime is 406361. The reversal of 406354 is 453604.

It can be written as a sum of positive squares in 2 ways, for example, as 393129 + 13225 = 627^2 + 115^2 .

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, 7789 + ... + 7840.

406354 is a Friedman number, since it can be written as (5^6+4)*(30-4), using all its digits and the basic arithmetic operations.

2⁴⁰⁶³⁵⁴ is an apocalyptic number.

406354 is a deficient number, since it is larger than the sum of its proper divisors (250106).

406354 is a wasteful number, since it uses less digits than its factorization.

406354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15644.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 406354 is about 637.4590182906. The cubic root of 406354 is about 74.0687211626.

Adding to 406354 its reverse (453604), we get a palindrome (859958).

The spelling of 406354 in words is "four hundred six thousand, three hundred fifty-four".