78824232 has 64 divisors (see below), whose sum is σ = 222000000. Its totient is φ = 25909632.

The previous prime is 78824219. The next prime is 78824267. The reversal of 78824232 is 23242887.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13269 + ... + 18267.

It is an arithmetic number, because the mean of its divisors is an integer number (3468750).

Almost surely, 2^78824232 is an apocalyptic number.

78824232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78824232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111000000).

78824232 is an abundant number, since it is smaller than the sum of its proper divisors (143175768).

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

78824232 is a wasteful number, since it uses less digits than its factorization.

78824232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5087 (or 5077 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 78824232 is about 8878.3011888536. The cubic root of 78824232 is about 428.7655817449.

The spelling of 78824232 in words is "seventy-eight million, eight hundred twenty-four thousand, two hundred thirty-two".