78118234 has 24 divisors (see below), whose sum is σ = 124445268. Its totient is φ = 36771840.

The previous prime is 78118223. The next prime is 78118259. The reversal of 78118234 is 43281187.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78057225 + 61009 = 8835^2 + 247^2 .

It is a super-2 number, since 2×78118234² = 12204916966557512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78118234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185344 + ... + 185764.

Almost surely, 2^78118234 is an apocalyptic number.

78118234 is a deficient number, since it is larger than the sum of its proper divisors (46327034).

78118234 is a wasteful number, since it uses less digits than its factorization.

78118234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 699 counting only the distinct ones).

The product of its digits is 10752, while the sum is 34.

The square root of 78118234 is about 8838.4520137861. The cubic root of 78118234 is about 427.4816453025.

The spelling of 78118234 in words is "seventy-eight million, one hundred eighteen thousand, two hundred thirty-four".