78224848 has 20 divisors (see below), whose sum is σ = 163219588. Its totient is φ = 36103680.

The previous prime is 78224833. The next prime is 78224849. The reversal of 78224848 is 84842287.

It can be written as a sum of positive squares in 2 ways, for example, as 30780304 + 47444544 = 5548^2 + 6888^2 .

It is a super-2 number, since 2×78224848² = 12238253689246208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78224849) 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 3 ways as a sum of consecutive naturals, for example, 187833 + ... + 188248.

Almost surely, 2^78224848 is an apocalyptic number.

It is an amenable number.

78224848 is an abundant number, since it is smaller than the sum of its proper divisors (84994740).

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

78224848 is a wasteful number, since it uses less digits than its factorization.

78224848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376102 (or 376096 counting only the distinct ones).

The product of its digits is 229376, while the sum is 43.

The square root of 78224848 is about 8844.4812171207. The cubic root of 78224848 is about 427.6760293279.

The spelling of 78224848 in words is "seventy-eight million, two hundred twenty-four thousand, eight hundred forty-eight".