308428848 has 120 divisors (see below), whose sum is σ = 1062411168. Its totient is φ = 81340416.

The previous prime is 308428837. The next prime is 308428849. The reversal of 308428848 is 848824803.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (308428849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1336 + ... + 24872.

Almost surely, 2^308428848 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 308428848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531205584).

308428848 is an abundant number, since it is smaller than the sum of its proper divisors (753982320).

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

308428848 is a wasteful number, since it uses less digits than its factorization.

308428848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23571 (or 23562 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 308428848 is about 17562.1424661116. The cubic root of 308428848 is about 675.6446319106.

The spelling of 308428848 in words is "three hundred eight million, four hundred twenty-eight thousand, eight hundred forty-eight".