78042024 has 48 divisors (see below), whose sum is σ = 216527220. Its totient is φ = 25378560.

The previous prime is 78042017. The next prime is 78042047. The reversal of 78042024 is 42024087.

It can be written as a sum of positive squares in 2 ways, for example, as 77264100 + 777924 = 8790^2 + 882^2 .

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 11 ways as a sum of consecutive naturals, for example, 10267 + ... + 16170.

Almost surely, 2^78042024 is an apocalyptic number.

It is an amenable number.

78042024 is an abundant number, since it is smaller than the sum of its proper divisors (138485196).

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

78042024 is a wasteful number, since it uses less digits than its factorization.

78042024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490 (or 26483 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 78042024 is about 8834.1396864664. The cubic root of 78042024 is about 427.3425869612.

The spelling of 78042024 in words is "seventy-eight million, forty-two thousand, twenty-four".