4493940878 has 32 divisors (see below), whose sum is σ = 7834095360. Its totient is φ = 1893648960.

The previous prime is 4493940877. The next prime is 4493940883. The reversal of 4493940878 is 8780493944.

It is a super-2 number, since 2×4493940878² = 40391009229918821768, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4493940877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236018 + ... + 254346.

It is an arithmetic number, because the mean of its divisors is an integer number (244815480).

Almost surely, 2^4493940878 is an apocalyptic number.

4493940878 is a deficient number, since it is larger than the sum of its proper divisors (3340154482).

4493940878 is a wasteful number, since it uses less digits than its factorization.

4493940878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18632.

The product of its (nonzero) digits is 6967296, while the sum is 56.

The square root of 4493940878 is about 67036.8620834836. The cubic root of 4493940878 is about 1650.2222997703. Note that the first 4 decimals are identical.

The spelling of 4493940878 in words is "four billion, four hundred ninety-three million, nine hundred forty thousand, eight hundred seventy-eight".