78234300 has 54 divisors (see below), whose sum is σ = 245223888. Its totient is φ = 20862240.

The previous prime is 78234271. The next prime is 78234301. The reversal of 78234300 is 343287.

It is a super-2 number, since 2×78234300² = 12241211392980000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78234301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 42564 + ... + 44363.

Almost surely, 2^78234300 is an apocalyptic number.

It is an amenable number.

78234300 is an abundant number, since it is smaller than the sum of its proper divisors (166989588).

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

78234300 is a wasteful number, since it uses less digits than its factorization.

78234300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86947 (or 86937 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 78234300 is about 8845.0155454923. The cubic root of 78234300 is about 427.6932541660.

Adding to 78234300 its reverse (343287), we get a palindrome (78577587).

The spelling of 78234300 in words is "seventy-eight million, two hundred thirty-four thousand, three hundred".