42928841 has 2 divisors, whose sum is σ = 42928842. Its totient is φ = 42928840.

The previous prime is 42928793. The next prime is 42928849. The reversal of 42928841 is 14882924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38502025 + 4426816 = 6205^2 + 2104^2 .

It is a cyclic number.

It is not a de Polignac number, because 42928841 - 2¹⁰ = 42927817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42928795 and 42928804.

It is not a weakly prime, because it can be changed into another prime (42928849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21464420 + 21464421.

It is an arithmetic number, because the mean of its divisors is an integer number (21464421).

Almost surely, 2^42928841 is an apocalyptic number.

It is an amenable number.

42928841 is a deficient number, since it is larger than the sum of its proper divisors (1).

42928841 is an equidigital number, since it uses as much as digits as its factorization.

42928841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 38.

The square root of 42928841 is about 6552.0104548146. The cubic root of 42928841 is about 350.1464448394.

The spelling of 42928841 in words is "forty-two million, nine hundred twenty-eight thousand, eight hundred forty-one".