942878778 has 8 divisors (see below), whose sum is σ = 1885757568. Its totient is φ = 314292924.

The previous prime is 942878771. The next prime is 942878779. The reversal of 942878778 is 877878249.

It is a happy number.

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

942878778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (942878771) by changing a digit.

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, 78573226 + ... + 78573237.

It is an arithmetic number, because the mean of its divisors is an integer number (235719696).

Almost surely, 2^942878778 is an apocalyptic number.

942878778 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.

942878778 is a wasteful number, since it uses less digits than its factorization.

942878778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157146468.

The product of its digits is 12644352, while the sum is 60.

The square root of 942878778 is about 30706.3312364079. The cubic root of 942878778 is about 980.5850934807.

The spelling of 942878778 in words is "nine hundred forty-two million, eight hundred seventy-eight thousand, seven hundred seventy-eight".