78942248 has 32 divisors (see below), whose sum is σ = 184541760. Its totient is φ = 30756480.

The previous prime is 78942239. The next prime is 78942257. The reversal of 78942248 is 84224987.

It is an interprime number because it is at equal distance from previous prime (78942239) and next prime (78942257).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 78942199 and 78942208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63461 + ... + 64692.

It is an arithmetic number, because the mean of its divisors is an integer number (5766930).

Almost surely, 2^78942248 is an apocalyptic number.

It is an amenable number.

78942248 is an abundant number, since it is smaller than the sum of its proper divisors (105599512).

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

78942248 is a wasteful number, since it uses less digits than its factorization.

78942248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128177 (or 128173 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 78942248 is about 8884.9450195260. The cubic root of 78942248 is about 428.9794583036.

The spelling of 78942248 in words is "seventy-eight million, nine hundred forty-two thousand, two hundred forty-eight".