78030600 has 48 divisors (see below), whose sum is σ = 241896720. Its totient is φ = 20808000.

The previous prime is 78030581. The next prime is 78030607. The reversal of 78030600 is 603087.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (78030607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64426 + ... + 65625.

It is an arithmetic number, because the mean of its divisors is an integer number (5039515).

Almost surely, 2^78030600 is an apocalyptic number.

It is an amenable number.

78030600 is an abundant number, since it is smaller than the sum of its proper divisors (163866120).

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

78030600 is a wasteful number, since it uses less digits than its factorization.

78030600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130070 (or 130061 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 78030600 is about 8833.4930803165. The cubic root of 78030600 is about 427.3217340938.

Adding to 78030600 its reverse (603087), we get a palindrome (78633687).

The spelling of 78030600 in words is "seventy-eight million, thirty thousand, six hundred".