44021261 has 2 divisors, whose sum is σ = 44021262. Its totient is φ = 44021260.

The previous prime is 44021239. The next prime is 44021267. The reversal of 44021261 is 16212044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29052100 + 14969161 = 5390^2 + 3869^2 .

It is a cyclic number.

It is not a de Polignac number, because 44021261 - 2¹⁰ = 44020237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44021267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22010630 + 22010631.

It is an arithmetic number, because the mean of its divisors is an integer number (22010631).

Almost surely, 2^44021261 is an apocalyptic number.

It is an amenable number.

44021261 is a deficient number, since it is larger than the sum of its proper divisors (1).

44021261 is an equidigital number, since it uses as much as digits as its factorization.

44021261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 44021261 is about 6634.8519953349. The cubic root of 44021261 is about 353.0916870551.

The spelling of 44021261 in words is "forty-four million, twenty-one thousand, two hundred sixty-one".