78452248 has 32 divisors (see below), whose sum is σ = 168838560. Its totient is φ = 33477120.

The previous prime is 78452237. The next prime is 78452249. The reversal of 78452248 is 84225487.

It is a self number, because there is not a number n which added to its sum of digits gives 78452248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78452249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10590 + ... + 16402.

It is an arithmetic number, because the mean of its divisors is an integer number (5276205).

Almost surely, 2^78452248 is an apocalyptic number.

It is an amenable number.

78452248 is an abundant number, since it is smaller than the sum of its proper divisors (90386312).

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

78452248 is a wasteful number, since it uses less digits than its factorization.

78452248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6067 (or 6063 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 78452248 is about 8857.3273621336. The cubic root of 78452248 is about 428.0900471438.

The spelling of 78452248 in words is "seventy-eight million, four hundred fifty-two thousand, two hundred forty-eight".