78032200 has 24 divisors (see below), whose sum is σ = 181425330. Its totient is φ = 31212800.

The previous prime is 78032197. The next prime is 78032203. The reversal of 78032200 is 223087.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78032197) and next prime (78032203).

It can be written as a sum of positive squares in 3 ways, for example, as 57183844 + 20848356 = 7562^2 + 4566^2 .

It is not an unprimeable number, because it can be changed into a prime (78032203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194881 + ... + 195280.

Almost surely, 2^78032200 is an apocalyptic number.

It is an amenable number.

78032200 is an abundant number, since it is smaller than the sum of its proper divisors (103393130).

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

78032200 is a wasteful number, since it uses less digits than its factorization.

78032200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390177 (or 390168 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 78032200 is about 8833.5836442522. The cubic root of 78032200 is about 427.3246547860.

Adding to 78032200 its reverse (223087), we get a palindrome (78255287).

The spelling of 78032200 in words is "seventy-eight million, thirty-two thousand, two hundred".