78842050 has 24 divisors (see below), whose sum is σ = 167596416. Its totient is φ = 27031440.

The previous prime is 78842041. The next prime is 78842059. The reversal of 78842050 is 5024887.

It is an interprime number because it is at equal distance from previous prime (78842041) and next prime (78842059).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 78841997 and 78842015.

It is not an unprimeable number, because it can be changed into a prime (78842059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112282 + ... + 112981.

It is an arithmetic number, because the mean of its divisors is an integer number (6983184).

Almost surely, 2^78842050 is an apocalyptic number.

78842050 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78842050 is an abundant number, since it is smaller than the sum of its proper divisors (88754366).

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

78842050 is a wasteful number, since it uses less digits than its factorization.

78842050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225282 (or 225277 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 78842050 is about 8879.3045898877. The cubic root of 78842050 is about 428.7978864029.

The spelling of 78842050 in words is "seventy-eight million, eight hundred forty-two thousand, fifty".