78030300 has 72 divisors (see below), whose sum is σ = 233578800. Its totient is φ = 20088320.

The previous prime is 78030233. The next prime is 78030311. The reversal of 78030300 is 303087.

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, 4216 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (3244150).

Almost surely, 2^78030300 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 78030300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116789400).

78030300 is an abundant number, since it is smaller than the sum of its proper divisors (155548500).

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

78030300 is a wasteful number, since it uses less digits than its factorization.

78030300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015 (or 9008 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 78030300 is about 8833.4760994752. The cubic root of 78030300 is about 427.3211864596.

Adding to 78030300 its reverse (303087), we get a palindrome (78333387).

The spelling of 78030300 in words is "seventy-eight million, thirty thousand, three hundred".