308828400 has 120 divisors (see below), whose sum is σ = 1013570544. Its totient is φ = 80332800.

The previous prime is 308828389. The next prime is 308828423. The reversal of 308828400 is 4828803.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46062 + ... + 52338.

Almost surely, 2^308828400 is an apocalyptic number.

308828400 is a gapful number since it is divisible by the number (30) 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 308828400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506785272).

308828400 is an abundant number, since it is smaller than the sum of its proper divisors (704742144).

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

308828400 is a wasteful number, since it uses less digits than its factorization.

308828400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339 (or 6328 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 308828400 is about 17573.5141619427. The cubic root of 308828400 is about 675.9362590601.

The spelling of 308828400 in words is "three hundred eight million, eight hundred twenty-eight thousand, four hundred".