44649649 has 4 divisors (see below), whose sum is σ = 48708720. Its totient is φ = 40590580.

The previous prime is 44649629. The next prime is 44649659. The reversal of 44649649 is 94694644.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44649649 - 2⁵ = 44649617 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44649599 and 44649608.

It is not an unprimeable number, because it can be changed into a prime (44649629) 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, 2029519 + ... + 2029540.

It is an arithmetic number, because the mean of its divisors is an integer number (12177180).

Almost surely, 2^44649649 is an apocalyptic number.

It is an amenable number.

44649649 is a deficient number, since it is larger than the sum of its proper divisors (4059071).

44649649 is a wasteful number, since it uses less digits than its factorization.

44649649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059070.

The product of its digits is 746496, while the sum is 46.

The square root of 44649649 is about 6682.0392845298. The cubic root of 44649649 is about 354.7638421412.

The spelling of 44649649 in words is "forty-four million, six hundred forty-nine thousand, six hundred forty-nine".