408026 has 4 divisors (see below), whose sum is σ = 612042. Its totient is φ = 204012.

The previous prime is 408019. The next prime is 408041. The reversal of 408026 is 620804.

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., 286225 + 121801 = 535^2 + 349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 407989 and 408007.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 408026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102005 + ... + 102008.

2⁴⁰⁸⁰²⁶ is an apocalyptic number.

408026 is a deficient number, since it is larger than the sum of its proper divisors (204016).

408026 is a wasteful number, since it uses less digits than its factorization.

408026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204015.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 408026 is about 638.7691288721. The cubic root of 408026 is about 74.1701708286.

The spelling of 408026 in words is "four hundred eight thousand, twenty-six".