408212250 has 64 divisors (see below), whose sum is σ = 1021662720. Its totient is φ = 108561600.

The previous prime is 408212243. The next prime is 408212251. The reversal of 408212250 is 52212804.

It is a self number, because there is not a number n which added to its sum of digits gives 408212250.

It is not an unprimeable number, because it can be changed into a prime (408212251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538872 + ... + 539628.

It is an arithmetic number, because the mean of its divisors is an integer number (15963480).

Almost surely, 2^408212250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 408212250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510831360).

408212250 is an abundant number, since it is smaller than the sum of its proper divisors (613450470).

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

408212250 is a wasteful number, since it uses less digits than its factorization.

408212250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 408212250 is about 20204.2631639959. The cubic root of 408212250 is about 741.8145449916.

It can be divided in two parts, 40821 and 2250, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 408212250 in words is "four hundred eight million, two hundred twelve thousand, two hundred fifty".