44557649 has 4 divisors (see below), whose sum is σ = 44590260. Its totient is φ = 44525040.

The previous prime is 44557609. The next prime is 44557651. The reversal of 44557649 is 94675544.

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 1890625 + 42667024 = 1375^2 + 6532^2 .

It is a cyclic number.

It is not a de Polignac number, because 44557649 - 2²⁰ = 43509073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44557609) 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, 14162 + ... + 17019.

It is an arithmetic number, because the mean of its divisors is an integer number (11147565).

Almost surely, 2^44557649 is an apocalyptic number.

It is an amenable number.

44557649 is a deficient number, since it is larger than the sum of its proper divisors (32611).

44557649 is a wasteful number, since it uses less digits than its factorization.

44557649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32610.

The product of its digits is 604800, while the sum is 44.

The square root of 44557649 is about 6675.1516087652. The cubic root of 44557649 is about 354.5200125568.

The spelling of 44557649 in words is "forty-four million, five hundred fifty-seven thousand, six hundred forty-nine".