40011089 has 2 divisors, whose sum is σ = 40011090. Its totient is φ = 40011088.

The previous prime is 40011077. The next prime is 40011091. The reversal of 40011089 is 98011004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 258064 = 6305^2 + 508^2 .

It is a cyclic number.

It is not a de Polignac number, because 40011089 - 2⁴ = 40011073 is a prime.

Together with 40011091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40011019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005544 + 20005545.

It is an arithmetic number, because the mean of its divisors is an integer number (20005545).

Almost surely, 2^40011089 is an apocalyptic number.

It is an amenable number.

40011089 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011089 is an equidigital number, since it uses as much as digits as its factorization.

40011089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 40011089 is about 6325.4319220113. The cubic root of 40011089 is about 342.0267896208.

The spelling of 40011089 in words is "forty million, eleven thousand, eighty-nine".