44643601 has 2 divisors, whose sum is σ = 44643602. Its totient is φ = 44643600.

The previous prime is 44643583. The next prime is 44643607. The reversal of 44643601 is 10634644.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 4511376 = 6335^2 + 2124^2 .

It is a cyclic number.

It is not a de Polignac number, because 44643601 - 2⁵ = 44643569 is a prime.

It is a super-2 number, since 2×44643601² = 3986102220494402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 44643601.

It is not a weakly prime, because it can be changed into another prime (44643607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22321800 + 22321801.

It is an arithmetic number, because the mean of its divisors is an integer number (22321801).

Almost surely, 2^44643601 is an apocalyptic number.

It is an amenable number.

44643601 is a deficient number, since it is larger than the sum of its proper divisors (1).

44643601 is an equidigital number, since it uses as much as digits as its factorization.

44643601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 44643601 is about 6681.5867127502. The cubic root of 44643601 is about 354.7478232874.

The spelling of 44643601 in words is "forty-four million, six hundred forty-three thousand, six hundred one".