44540869 has 2 divisors, whose sum is σ = 44540870. Its totient is φ = 44540868.

The previous prime is 44540849. The next prime is 44540879. The reversal of 44540869 is 96804544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32638369 + 11902500 = 5713^2 + 3450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44540869 is a prime.

It is a super-2 number, since 2×44540869² = 3967778022550322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44540849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22270434 + 22270435.

It is an arithmetic number, because the mean of its divisors is an integer number (22270435).

Almost surely, 2^44540869 is an apocalyptic number.

It is an amenable number.

44540869 is a deficient number, since it is larger than the sum of its proper divisors (1).

44540869 is an equidigital number, since it uses as much as digits as its factorization.

44540869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 44540869 is about 6673.8945901175. The cubic root of 44540869 is about 354.4755039793.

It can be divided in two parts, 445 and 40869, that added together give a palindrome (41314).

The spelling of 44540869 in words is "forty-four million, five hundred forty thousand, eight hundred sixty-nine".