609078642 has 32 divisors (see below), whose sum is σ = 1238887104. Its totient is φ = 199584000.

The previous prime is 609078629. The next prime is 609078661. The reversal of 609078642 is 246870906.

609078642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 609078594 and 609078603.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240342 + ... + 242862.

It is an arithmetic number, because the mean of its divisors is an integer number (38715222).

Almost surely, 2^609078642 is an apocalyptic number.

609078642 is an abundant number, since it is smaller than the sum of its proper divisors (629808462).

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

609078642 is a wasteful number, since it uses less digits than its factorization.

609078642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 609078642 is about 24679.5186743988. The cubic root of 609078642 is about 847.6654008414.

The spelling of 609078642 in words is "six hundred nine million, seventy-eight thousand, six hundred forty-two".