4449890078 has 8 divisors (see below), whose sum is σ = 6675444360. Its totient is φ = 2224741960.

The previous prime is 4449890077. The next prime is 4449890087. The reversal of 4449890078 is 8700989444.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449890077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72488 + ... + 118971.

It is an arithmetic number, because the mean of its divisors is an integer number (834430545).

Almost surely, 2^4449890078 is an apocalyptic number.

4449890078 is a deficient number, since it is larger than the sum of its proper divisors (2225554282).

4449890078 is a wasteful number, since it uses less digits than its factorization.

4449890078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203082.

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 4449890078 is about 66707.4964153205. The cubic root of 4449890078 is about 1644.8126131774.

The spelling of 4449890078 in words is "four billion, four hundred forty-nine million, eight hundred ninety thousand, seventy-eight".