44220061 has 2 divisors, whose sum is σ = 44220062. Its totient is φ = 44220060.

The previous prime is 44220047. The next prime is 44220079. The reversal of 44220061 is 16002244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26327161 + 17892900 = 5131^2 + 4230^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44220061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44220161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22110030 + 22110031.

It is an arithmetic number, because the mean of its divisors is an integer number (22110031).

Almost surely, 2^44220061 is an apocalyptic number.

It is an amenable number.

44220061 is a deficient number, since it is larger than the sum of its proper divisors (1).

44220061 is an equidigital number, since it uses as much as digits as its factorization.

44220061 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 19.

The square root of 44220061 is about 6649.8166140128. The cubic root of 44220061 is about 353.6224095877.

It can be divided in two parts, 442 and 20061, that added together give a triangular number (20503 = T₂₀₂).

The spelling of 44220061 in words is "forty-four million, two hundred twenty thousand, sixty-one".