308741868 has 60 divisors (see below), whose sum is σ = 849608760. Its totient is φ = 97495488.

The previous prime is 308741861. The next prime is 308741891. The reversal of 308741868 is 868147803.

It is a super-2 number, since 2×308741868² = 190643082112258848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (308741861) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18921 + ... + 31232.

It is an arithmetic number, because the mean of its divisors is an integer number (14160146).

Almost surely, 2^308741868 is an apocalyptic number.

308741868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

308741868 is an abundant number, since it is smaller than the sum of its proper divisors (540866892).

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

308741868 is a wasteful number, since it uses less digits than its factorization.

308741868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50188 (or 50177 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 308741868 is about 17571.0519889960. The cubic root of 308741868 is about 675.8731219694.

The spelling of 308741868 in words is "three hundred eight million, seven hundred forty-one thousand, eight hundred sixty-eight".