308841516 has 144 divisors (see below), whose sum is σ = 887350464. Its totient is φ = 90021888.

The previous prime is 308841509. The next prime is 308841517. The reversal of 308841516 is 615148803.

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 (308841517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520516 + ... + 521108.

It is an arithmetic number, because the mean of its divisors is an integer number (6162156).

Almost surely, 2^308841516 is an apocalyptic number.

308841516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308841516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443675232).

308841516 is an abundant number, since it is smaller than the sum of its proper divisors (578508948).

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

308841516 is a wasteful number, since it uses less digits than its factorization.

308841516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 308841516 is about 17573.8873331998. The cubic root of 308841516 is about 675.9458279711.

It can be divided in two parts, 30884 and 1516, that added together give a square (32400 = 180²).

The spelling of 308841516 in words is "three hundred eight million, eight hundred forty-one thousand, five hundred sixteen".