408378226 has 8 divisors (see below), whose sum is σ = 621195264. Its totient is φ = 201313140.

The previous prime is 408378209. The next prime is 408378227. The reversal of 408378226 is 622873804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (408378227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1437810 + ... + 1438093.

It is an arithmetic number, because the mean of its divisors is an integer number (77649408).

Almost surely, 2^408378226 is an apocalyptic number.

408378226 is a deficient number, since it is larger than the sum of its proper divisors (212817038).

408378226 is a wasteful number, since it uses less digits than its factorization.

408378226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875976.

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 408378226 is about 20208.3701965300. The cubic root of 408378226 is about 741.9150700883.

The spelling of 408378226 in words is "four hundred eight million, three hundred seventy-eight thousand, two hundred twenty-six".