44441557 has 2 divisors, whose sum is σ = 44441558. Its totient is φ = 44441556.

The previous prime is 44441549. The next prime is 44441591. The reversal of 44441557 is 75514444.

It is an a-pointer prime, because the next prime (44441591) can be obtained adding 44441557 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36857041 + 7584516 = 6071^2 + 2754^2 .

It is a cyclic number.

It is not a de Polignac number, because 44441557 - 2³ = 44441549 is a prime.

It is equal to p_2686417 and since 44441557 and 2686417 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44441857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22220778 + 22220779.

It is an arithmetic number, because the mean of its divisors is an integer number (22220779).

Almost surely, 2^44441557 is an apocalyptic number.

It is an amenable number.

44441557 is a deficient number, since it is larger than the sum of its proper divisors (1).

44441557 is an equidigital number, since it uses as much as digits as its factorization.

44441557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44800, while the sum is 34.

The square root of 44441557 is about 6666.4501048159. The cubic root of 44441557 is about 354.2118519758.

The spelling of 44441557 in words is "forty-four million, four hundred forty-one thousand, five hundred fifty-seven".