44649405 has 24 divisors (see below), whose sum is σ = 77595648. Its totient is φ = 23750496.

The previous prime is 44649401. The next prime is 44649413. The reversal of 44649405 is 50494644.

44649405 is a `hidden beast` number, since 4 + 4 + 649 + 4 + 0 + 5 = 666.

It is not a de Polignac number, because 44649405 - 2² = 44649401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44649405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44649401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19764 + ... + 21906.

It is an arithmetic number, because the mean of its divisors is an integer number (3233152).

Almost surely, 2^44649405 is an apocalyptic number.

44649405 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44649405 is a deficient number, since it is larger than the sum of its proper divisors (32946243).

44649405 is a wasteful number, since it uses less digits than its factorization.

44649405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 44649405 is about 6682.0210266056. The cubic root of 44649405 is about 354.7631959060.

It can be divided in two parts, 44649 and 405, that added together give a palindrome (45054).

The spelling of 44649405 in words is "forty-four million, six hundred forty-nine thousand, four hundred five".