1908404226 has 40 divisors (see below), whose sum is σ = 4327790544. Its totient is φ = 628466040.

The previous prime is 1908404203. The next prime is 1908404233. The reversal of 1908404226 is 6224048091.

1908404226 is a `hidden beast` number, since 190 + 8 + 40 + 422 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 57520 + ... + 84411.

Almost surely, 2^1908404226 is an apocalyptic number.

1908404226 is an abundant number, since it is smaller than the sum of its proper divisors (2419386318).

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

1908404226 is a wasteful number, since it uses less digits than its factorization.

1908404226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142028 (or 142019 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1908404226 is about 43685.2861499155. The cubic root of 1908404226 is about 1240.3858117018.

The spelling of 1908404226 in words is "one billion, nine hundred eight million, four hundred four thousand, two hundred twenty-six".