308420404 has 6 divisors (see below), whose sum is σ = 539735714. Its totient is φ = 154210200.

The previous prime is 308420393. The next prime is 308420449. The reversal of 308420404 is 404024803.

It can be written as a sum of positive squares in only one way, i.e., 180956304 + 127464100 = 13452^2 + 11290^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 38552547 + ... + 38552554.

Almost surely, 2^308420404 is an apocalyptic number.

It is an amenable number.

308420404 is a deficient number, since it is larger than the sum of its proper divisors (231315310).

308420404 is a wasteful number, since it uses less digits than its factorization.

308420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77105105 (or 77105103 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 308420404 is about 17561.9020609956. The cubic root of 308420404 is about 675.6384660419.

The spelling of 308420404 in words is "three hundred eight million, four hundred twenty thousand, four hundred four".