40162489 has 2 divisors, whose sum is σ = 40162490. Its totient is φ = 40162488.

The previous prime is 40162459. The next prime is 40162541. The reversal of 40162489 is 98426104.

40162489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29160000 + 11002489 = 5400^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 40162489 - 2⁵ = 40162457 is a prime.

It is a super-2 number, since 2×40162489² = 3226051045350242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40162459) 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, 20081244 + 20081245.

It is an arithmetic number, because the mean of its divisors is an integer number (20081245).

Almost surely, 2^40162489 is an apocalyptic number.

It is an amenable number.

40162489 is a deficient number, since it is larger than the sum of its proper divisors (1).

40162489 is an equidigital number, since it uses as much as digits as its factorization.

40162489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 40162489 is about 6337.3881844179. The cubic root of 40162489 is about 342.4576508279.

The spelling of 40162489 in words is "forty million, one hundred sixty-two thousand, four hundred eighty-nine".