10042489 has 2 divisors, whose sum is σ = 10042490. Its totient is φ = 10042488.

The previous prime is 10042471. The next prime is 10042523. The reversal of 10042489 is 98424001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8602489 + 1440000 = 2933^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 10042489 - 2⁵ = 10042457 is a prime.

It is not a weakly prime, because it can be changed into another prime (10042289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021244 + 5021245.

It is an arithmetic number, because the mean of its divisors is an integer number (5021245).

Almost surely, 2^10042489 is an apocalyptic number.

It is an amenable number.

10042489 is a deficient number, since it is larger than the sum of its proper divisors (1).

10042489 is an equidigital number, since it uses as much as digits as its factorization.

10042489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 10042489 is about 3168.9886399291. The cubic root of 10042489 is about 215.7481704463.

The spelling of 10042489 in words is "ten million, forty-two thousand, four hundred eighty-nine".