308841012 has 60 divisors (see below), whose sum is σ = 810731460. Its totient is φ = 102518784.

The previous prime is 308841011. The next prime is 308841019. The reversal of 308841012 is 210148803.

It can be written as a sum of positive squares in 2 ways, for example, as 216796176 + 92044836 = 14724^2 + 9594^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308841011) 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 19 ways as a sum of consecutive naturals, for example, 81414 + ... + 85122.

It is an arithmetic number, because the mean of its divisors is an integer number (13512191).

Almost surely, 2^308841012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 308841012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405365730).

308841012 is an abundant number, since it is smaller than the sum of its proper divisors (501890448).

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

308841012 is a wasteful number, since it uses less digits than its factorization.

308841012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982 (or 3971 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 308841012 is about 17573.8729937370. The cubic root of 308841012 is about 675.9454602778.

Adding to 308841012 its reverse (210148803), we get a palindrome (518989815).

It can be divided in two parts, 3088 and 41012, that added together give a square (44100 = 210²).

The spelling of 308841012 in words is "three hundred eight million, eight hundred forty-one thousand, twelve".