44397778 has 16 divisors (see below), whose sum is σ = 70802424. Its totient is φ = 20807680.

The previous prime is 44397767. The next prime is 44397781. The reversal of 44397778 is 87779344.

44397778 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 4 ways, for example, as 43784689 + 613089 = 6617^2 + 783^2 .

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 7 ways as a sum of consecutive naturals, for example, 6198 + ... + 11278.

Almost surely, 2^44397778 is an apocalyptic number.

44397778 is a deficient number, since it is larger than the sum of its proper divisors (26404646).

44397778 is a wasteful number, since it uses less digits than its factorization.

44397778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357.

The product of its digits is 1185408, while the sum is 49.

The square root of 44397778 is about 6663.1657641094. The cubic root of 44397778 is about 354.0955034014.

The spelling of 44397778 in words is "forty-four million, three hundred ninety-seven thousand, seven hundred seventy-eight".