408922 has 4 divisors (see below), whose sum is σ = 613386. Its totient is φ = 204460.

The previous prime is 408913. The next prime is 408923. The reversal of 408922 is 229804.

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., 346921 + 62001 = 589^2 + 249^2 .

It is not an unprimeable number, because it can be changed into a prime (408923) by changing a digit.

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, 102229 + ... + 102232.

2⁴⁰⁸⁹²² is an apocalyptic number.

408922 is a deficient number, since it is larger than the sum of its proper divisors (204464).

408922 is a wasteful number, since it uses less digits than its factorization.

408922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204463.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 408922 is about 639.4700931240. The cubic root of 408922 is about 74.2244221814.

The spelling of 408922 in words is "four hundred eight thousand, nine hundred twenty-two".