78530232 has 64 divisors (see below), whose sum is σ = 218764800. Its totient is φ = 23287040.

The previous prime is 78530213. The next prime is 78530273. The reversal of 78530232 is 23203587.

It is a self number, because there is not a number n which added to its sum of digits gives 78530232.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9244 + ... + 15572.

It is an arithmetic number, because the mean of its divisors is an integer number (3418200).

Almost surely, 2^78530232 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 78530232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109382400).

78530232 is an abundant number, since it is smaller than the sum of its proper divisors (140234568).

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

78530232 is a wasteful number, since it uses less digits than its factorization.

78530232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396 (or 6392 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 78530232 is about 8861.7284995649. The cubic root of 78530232 is about 428.2318451570.

The spelling of 78530232 in words is "seventy-eight million, five hundred thirty thousand, two hundred thirty-two".