308142804 has 12 divisors (see below), whose sum is σ = 718999904. Its totient is φ = 102714264.

The previous prime is 308142803. The next prime is 308142823. The reversal of 308142804 is 408241803.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308142803) 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, 12839272 + ... + 12839295.

Almost surely, 2^308142804 is an apocalyptic number.

It is an amenable number.

308142804 is an abundant number, since it is smaller than the sum of its proper divisors (410857100).

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

308142804 is a wasteful number, since it uses less digits than its factorization.

308142804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25678574 (or 25678572 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 308142804 is about 17553.9968098436. The cubic root of 308142804 is about 675.4356978555.

The spelling of 308142804 in words is "three hundred eight million, one hundred forty-two thousand, eight hundred four".