306428200 has 96 divisors (see below), whose sum is σ = 807760800. Its totient is φ = 107170560.

The previous prime is 306428197. The next prime is 306428201. The reversal of 306428200 is 2824603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (306428201) 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, 46299 + ... + 52501.

It is an arithmetic number, because the mean of its divisors is an integer number (8414175).

Almost surely, 2^306428200 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 306428200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403880400).

306428200 is an abundant number, since it is smaller than the sum of its proper divisors (501332600).

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

306428200 is a wasteful number, since it uses less digits than its factorization.

306428200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251 (or 6242 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 306428200 is about 17505.0906881398. The cubic root of 306428200 is about 674.1805877578.

The spelling of 306428200 in words is "three hundred six million, four hundred twenty-eight thousand, two hundred".