678773242 has 8 divisors (see below), whose sum is σ = 1163611296. Its totient is φ = 290902812.

The previous prime is 678773219. The next prime is 678773243. The reversal of 678773242 is 242377876.

It is a happy number.

678773242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×678773242² = 921466228110381128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 678773192 and 678773201.

It is not an unprimeable number, because it can be changed into a prime (678773243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24241888 + ... + 24241915.

It is an arithmetic number, because the mean of its divisors is an integer number (145451412).

Almost surely, 2^678773242 is an apocalyptic number.

678773242 is a deficient number, since it is larger than the sum of its proper divisors (484838054).

678773242 is a wasteful number, since it uses less digits than its factorization.

678773242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48483812.

The product of its digits is 790272, while the sum is 46.

The square root of 678773242 is about 26053.2769915802. The cubic root of 678773242 is about 878.8368076836.

The spelling of 678773242 in words is "six hundred seventy-eight million, seven hundred seventy-three thousand, two hundred forty-two".