44402557 has 2 divisors, whose sum is σ = 44402558. Its totient is φ = 44402556.

The previous prime is 44402551. The next prime is 44402591. The reversal of 44402557 is 75520444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33419961 + 10982596 = 5781^2 + 3314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44402557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44402551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22201278 + 22201279.

It is an arithmetic number, because the mean of its divisors is an integer number (22201279).

Almost surely, 2^44402557 is an apocalyptic number.

It is an amenable number.

44402557 is a deficient number, since it is larger than the sum of its proper divisors (1).

44402557 is an equidigital number, since it uses as much as digits as its factorization.

44402557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 44402557 is about 6663.5243677802. The cubic root of 44402557 is about 354.1082079538.

The spelling of 44402557 in words is "forty-four million, four hundred two thousand, five hundred fifty-seven".