78414318 has 40 divisors (see below), whose sum is σ = 181775880. Its totient is φ = 25235280.

The previous prime is 78414313. The next prime is 78414331. The reversal of 78414318 is 81341487.

It is a super-2 number, since 2×78414318² = 12297610534810248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78414313) 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 19 ways as a sum of consecutive naturals, for example, 3648 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (4544397).

Almost surely, 2^78414318 is an apocalyptic number.

78414318 is an abundant number, since it is smaller than the sum of its proper divisors (103361562).

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

78414318 is a wasteful number, since it uses less digits than its factorization.

78414318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734 (or 16725 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 78414318 is about 8855.1859381946. The cubic root of 78414318 is about 428.0210451992.

The spelling of 78414318 in words is "seventy-eight million, four hundred fourteen thousand, three hundred eighteen".