44243631 has 8 divisors (see below), whose sum is σ = 65546160. Its totient is φ = 29495736.

The previous prime is 44243629. The next prime is 44243653. The reversal of 44243631 is 13634244.

44243631 is a `hidden beast` number, since 4 + 4 + 24 + 3 + 631 = 666.

It is not a de Polignac number, because 44243631 - 2¹ = 44243629 is a prime.

It is a super-2 number, since 2×44243631² = 3914997768128322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1638653 = 44243631 / (4 + 4 + 2 + 4 + 3 + 6 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 44243595 and 44243604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44243611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819300 + ... + 819353.

It is an arithmetic number, because the mean of its divisors is an integer number (8193270).

Almost surely, 2^44243631 is an apocalyptic number.

44243631 is a deficient number, since it is larger than the sum of its proper divisors (21302529).

44243631 is a wasteful number, since it uses less digits than its factorization.

44243631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638662 (or 1638656 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 44243631 is about 6651.5886072426. The cubic root of 44243631 is about 353.6852272288.

Adding to 44243631 its reverse (13634244), we get a palindrome (57877875).

The spelling of 44243631 in words is "forty-four million, two hundred forty-three thousand, six hundred thirty-one".