44778868 has 12 divisors (see below), whose sum is σ = 78561252. Its totient is φ = 22332800.

The previous prime is 44778809. The next prime is 44778887. The reversal of 44778868 is 86887744.

44778868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 43586404 + 1192464 = 6602^2 + 1092^2 .

It is a super-2 number, since 2×44778868² = 4010294038722848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 12355 + ... + 15562.

It is an arithmetic number, because the mean of its divisors is an integer number (6546771).

Almost surely, 2^44778868 is an apocalyptic number.

It is an amenable number.

44778868 is a deficient number, since it is larger than the sum of its proper divisors (33782384).

44778868 is a wasteful number, since it uses less digits than its factorization.

44778868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322 (or 28320 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 52.

The square root of 44778868 is about 6691.7014278881. The cubic root of 44778868 is about 355.1057490949.

The spelling of 44778868 in words is "forty-four million, seven hundred seventy-eight thousand, eight hundred sixty-eight".