44149978 has 4 divisors (see below), whose sum is σ = 66224970. Its totient is φ = 22074988.

The previous prime is 44149951. The next prime is 44149993. The reversal of 44149978 is 87994144.

44149978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 37662769 + 6487209 = 6137^2 + 2547^2 .

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 as a sum of consecutive naturals, namely, 11037493 + ... + 11037496.

Almost surely, 2^44149978 is an apocalyptic number.

44149978 is a deficient number, since it is larger than the sum of its proper divisors (22074992).

44149978 is a wasteful number, since it uses less digits than its factorization.

44149978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22074991.

The product of its digits is 290304, while the sum is 46.

The square root of 44149978 is about 6644.5449806589. The cubic root of 44149978 is about 353.4354957537.

The spelling of 44149978 in words is "forty-four million, one hundred forty-nine thousand, nine hundred seventy-eight".