78324200 has 48 divisors (see below), whose sum is σ = 190032480. Its totient is φ = 29965760.

The previous prime is 78324179. The next prime is 78324217. The reversal of 78324200 is 242387.

It is a super-2 number, since 2×78324200² = 12269360611280000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78324200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3914 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (3959010).

Almost surely, 2^78324200 is an apocalyptic number.

It is an amenable number.

78324200 is an abundant number, since it is smaller than the sum of its proper divisors (111708280).

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

78324200 is a wasteful number, since it uses less digits than its factorization.

78324200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17066 (or 17057 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 78324200 is about 8850.0960446766. The cubic root of 78324200 is about 427.8570139887.

Adding to 78324200 its reverse (242387), we get a palindrome (78566587).

The spelling of 78324200 in words is "seventy-eight million, three hundred twenty-four thousand, two hundred".