44136645 has 16 divisors (see below), whose sum is σ = 80707200. Its totient is φ = 20176704.

The previous prime is 44136643. The next prime is 44136679. The reversal of 44136645 is 54663144.

It is not a de Polignac number, because 44136645 - 2¹ = 44136643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44136643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210070 + ... + 210279.

It is an arithmetic number, because the mean of its divisors is an integer number (5044200).

Almost surely, 2^44136645 is an apocalyptic number.

It is an amenable number.

44136645 is a deficient number, since it is larger than the sum of its proper divisors (36570555).

44136645 is a wasteful number, since it uses less digits than its factorization.

44136645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420364.

The product of its digits is 34560, while the sum is 33.

The square root of 44136645 is about 6643.5416006826. The cubic root of 44136645 is about 353.3999137812.

Adding to 44136645 its reverse (54663144), we get a palindrome (98799789).

The spelling of 44136645 in words is "forty-four million, one hundred thirty-six thousand, six hundred forty-five".