678075144 has 32 divisors (see below), whose sum is σ = 1768893120. Its totient is φ = 216197696.

The previous prime is 678075131. The next prime is 678075149. The reversal of 678075144 is 441570876.

It is a hoax number, since the sum of its digits (42) 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 = 678075096 and 678075105.

It is not an unprimeable number, because it can be changed into a prime (678075149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613647 + ... + 614750.

It is an arithmetic number, because the mean of its divisors is an integer number (55277910).

Almost surely, 2^678075144 is an apocalyptic number.

It is an amenable number.

678075144 is an abundant number, since it is smaller than the sum of its proper divisors (1090817976).

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

678075144 is a wasteful number, since it uses less digits than its factorization.

678075144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228429 (or 1228425 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 678075144 is about 26039.8760365713. The cubic root of 678075144 is about 878.5354185367.

The spelling of 678075144 in words is "six hundred seventy-eight million, seventy-five thousand, one hundred forty-four".