44211649 has 4 divisors (see below), whose sum is σ = 44362836. Its totient is φ = 44060464.

The previous prime is 44211619. The next prime is 44211667. The reversal of 44211649 is 94611244.

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 22496049 + 21715600 = 4743^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 44211649 - 2⁷ = 44211521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44211649.

It is not an unprimeable number, because it can be changed into a prime (44211619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75154 + ... + 75739.

It is an arithmetic number, because the mean of its divisors is an integer number (11090709).

Almost surely, 2^44211649 is an apocalyptic number.

It is an amenable number.

44211649 is a deficient number, since it is larger than the sum of its proper divisors (151187).

44211649 is a wasteful number, since it uses less digits than its factorization.

44211649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151186.

The product of its digits is 6912, while the sum is 31.

The square root of 44211649 is about 6649.1840852844. The cubic root of 44211649 is about 353.5999849213.

The spelling of 44211649 in words is "forty-four million, two hundred eleven thousand, six hundred forty-nine".