44368981 has 2 divisors, whose sum is σ = 44368982. Its totient is φ = 44368980.

The previous prime is 44368969. The next prime is 44369027. The reversal of 44368981 is 18986344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33246756 + 11122225 = 5766^2 + 3335^2 .

It is a cyclic number.

It is not a de Polignac number, because 44368981 - 2⁹ = 44368469 is a prime.

It is a super-2 number, since 2×44368981² = 3937212949956722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44368381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22184490 + 22184491.

It is an arithmetic number, because the mean of its divisors is an integer number (22184491).

Almost surely, 2^44368981 is an apocalyptic number.

It is an amenable number.

44368981 is a deficient number, since it is larger than the sum of its proper divisors (1).

44368981 is an equidigital number, since it uses as much as digits as its factorization.

44368981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 44368981 is about 6661.0045038267. The cubic root of 44368981 is about 354.0189297973.

The spelling of 44368981 in words is "forty-four million, three hundred sixty-eight thousand, nine hundred eighty-one".