44672261 has 2 divisors, whose sum is σ = 44672262. Its totient is φ = 44672260.

The previous prime is 44672219. The next prime is 44672273. The reversal of 44672261 is 16227644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30459361 + 14212900 = 5519^2 + 3770^2 .

It is a cyclic number.

It is not a de Polignac number, because 44672261 - 2⁶ = 44672197 is a prime.

It is a super-2 number, since 2×44672261² = 3991221805704242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44672291) 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, 22336130 + 22336131.

It is an arithmetic number, because the mean of its divisors is an integer number (22336131).

Almost surely, 2^44672261 is an apocalyptic number.

It is an amenable number.

44672261 is a deficient number, since it is larger than the sum of its proper divisors (1).

44672261 is an equidigital number, since it uses as much as digits as its factorization.

44672261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 32.

The square root of 44672261 is about 6683.7310687968. The cubic root of 44672261 is about 354.8237199258.

It can be divided in two parts, 446 and 72261, that multiplied together give a triangular number (32228406 = T₈₀₂₈).

The spelling of 44672261 in words is "forty-four million, six hundred seventy-two thousand, two hundred sixty-one".