408940228 has 12 divisors (see below), whose sum is σ = 716103612. Its totient is φ = 204339200.

The previous prime is 408940187. The next prime is 408940237. The reversal of 408940228 is 822049804.

It can be written as a sum of positive squares in 2 ways, for example, as 365880384 + 43059844 = 19128^2 + 6562^2 .

It is a super-2 number, since 2×408940228² = 334464220153383968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25525 + ... + 38332.

It is an arithmetic number, because the mean of its divisors is an integer number (59675301).

Almost surely, 2^408940228 is an apocalyptic number.

It is an amenable number.

408940228 is a deficient number, since it is larger than the sum of its proper divisors (307163384).

408940228 is a wasteful number, since it uses less digits than its factorization.

408940228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65462 (or 65460 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 408940228 is about 20222.2705945697. The cubic root of 408940228 is about 742.2552503453.

The spelling of 408940228 in words is "four hundred eight million, nine hundred forty thousand, two hundred twenty-eight".