47778044 has 12 divisors (see below), whose sum is σ = 83706504. Its totient is φ = 23861904.

The previous prime is 47778043. The next prime is 47778047. The reversal of 47778044 is 44087774.

47778044 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 = 47777992 and 47778010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47778043) 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, 2519 + ... + 10094.

It is an arithmetic number, because the mean of its divisors is an integer number (6975542).

Almost surely, 2^47778044 is an apocalyptic number.

It is an amenable number.

47778044 is a deficient number, since it is larger than the sum of its proper divisors (35928460).

47778044 is a wasteful number, since it uses less digits than its factorization.

47778044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13564 (or 13562 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 41.

The square root of 47778044 is about 6912.1663753124. The cubic root of 47778044 is about 362.8630851174.

It can be divided in two parts, 4777 and 8044, that added together give a palindrome (12821).

The spelling of 47778044 in words is "forty-seven million, seven hundred seventy-eight thousand, forty-four".