44278216 has 16 divisors (see below), whose sum is σ = 83166300. Its totient is φ = 22100544.

The previous prime is 44278187. The next prime is 44278229. The reversal of 44278216 is 61287244.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44275716 + 2500 = 6654^2 + 50^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390 + ... + 9418.

Almost surely, 2^44278216 is an apocalyptic number.

It is an amenable number.

44278216 is a deficient number, since it is larger than the sum of its proper divisors (38888084).

44278216 is a wasteful number, since it uses less digits than its factorization.

44278216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9648 (or 9644 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 44278216 is about 6654.1878542764. The cubic root of 44278216 is about 353.7773611504. Note that the first 3 decimals are identical.

Subtracting 44278216 from its reverse (61287244), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 44278216 in words is "forty-four million, two hundred seventy-eight thousand, two hundred sixteen".