78088434 has 8 divisors (see below), whose sum is σ = 156176880. Its totient is φ = 26029476.

The previous prime is 78088421. The next prime is 78088457. The reversal of 78088434 is 43488087.

It is a sphenic number, since it is the product of 3 distinct primes.

78088434 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6507364 + ... + 6507375.

It is an arithmetic number, because the mean of its divisors is an integer number (19522110).

Almost surely, 2^78088434 is an apocalyptic number.

78088434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78088434 is a wasteful number, since it uses less digits than its factorization.

78088434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13014744.

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 78088434 is about 8836.7660374144. The cubic root of 78088434 is about 427.4272808152.

The spelling of 78088434 in words is "seventy-eight million, eighty-eight thousand, four hundred thirty-four".