308013768 has 48 divisors (see below), whose sum is σ = 861120000. Its totient is φ = 99358560.

The previous prime is 308013763. The next prime is 308013779. The reversal of 308013768 is 867310803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (308013763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66768 + ... + 71231.

It is an arithmetic number, because the mean of its divisors is an integer number (17940000).

Almost surely, 2^308013768 is an apocalyptic number.

It is an amenable number.

308013768 is an abundant number, since it is smaller than the sum of its proper divisors (553106232).

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

308013768 is a wasteful number, since it uses less digits than its factorization.

308013768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138042 (or 138035 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 308013768 is about 17550.3210227050. The cubic root of 308013768 is about 675.3414042488.

The spelling of 308013768 in words is "three hundred eight million, thirteen thousand, seven hundred sixty-eight".