308724148 has 12 divisors (see below), whose sum is σ = 572047812. Its totient is φ = 145281920.

The previous prime is 308724127. The next prime is 308724149. The reversal of 308724148 is 841427803.

It can be written as a sum of positive squares in 2 ways, for example, as 232196644 + 76527504 = 15238^2 + 8748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308724149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2269963 + ... + 2270098.

It is an arithmetic number, because the mean of its divisors is an integer number (47670651).

Almost surely, 2^308724148 is an apocalyptic number.

It is an amenable number.

308724148 is a deficient number, since it is larger than the sum of its proper divisors (263323664).

308724148 is a wasteful number, since it uses less digits than its factorization.

308724148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4540082 (or 4540080 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 308724148 is about 17570.5477433118. The cubic root of 308724148 is about 675.8601913175.

The spelling of 308724148 in words is "three hundred eight million, seven hundred twenty-four thousand, one hundred forty-eight".