44149481 has 4 divisors (see below), whose sum is σ = 44163972. Its totient is φ = 44134992.

The previous prime is 44149471. The next prime is 44149507. The reversal of 44149481 is 18494144.

44149481 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 2 ways, for example, as 41538025 + 2611456 = 6445^2 + 1616^2 .

It is a cyclic number.

It is not a de Polignac number, because 44149481 - 2²² = 39955177 is a prime.

It is a super-2 number, since 2×44149481² = 3898353345138722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44149411) 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, 710 + ... + 9423.

It is an arithmetic number, because the mean of its divisors is an integer number (11040993).

Almost surely, 2^44149481 is an apocalyptic number.

It is an amenable number.

44149481 is a deficient number, since it is larger than the sum of its proper divisors (14491).

44149481 is a wasteful number, since it uses less digits than its factorization.

44149481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14490.

The product of its digits is 18432, while the sum is 35.

The square root of 44149481 is about 6644.5075814540. The cubic root of 44149481 is about 353.4341695311.

The spelling of 44149481 in words is "forty-four million, one hundred forty-nine thousand, four hundred eighty-one".