408122226 has 20 divisors (see below), whose sum is σ = 914496462. Its totient is φ = 136040688.

The previous prime is 408122149. The next prime is 408122233. The reversal of 408122226 is 622221804.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 258084225 + 150038001 = 16065^2 + 12249^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 408122226.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1259475 + ... + 1259798.

Almost surely, 2^408122226 is an apocalyptic number.

408122226 is an abundant number, since it is smaller than the sum of its proper divisors (506374236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408122226 is a wasteful number, since it uses less digits than its factorization.

408122226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519287 (or 2519278 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 408122226 is about 20202.0351945045. The cubic root of 408122226 is about 741.7600096183.

The spelling of 408122226 in words is "four hundred eight million, one hundred twenty-two thousand, two hundred twenty-six".