40582889 has 2 divisors, whose sum is σ = 40582890. Its totient is φ = 40582888.

The previous prime is 40582877. The next prime is 40582909. The reversal of 40582889 is 98828504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35200489 + 5382400 = 5933^2 + 2320^2 .

It is a cyclic number.

It is not a de Polignac number, because 40582889 - 2¹² = 40578793 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40582489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20291444 + 20291445.

It is an arithmetic number, because the mean of its divisors is an integer number (20291445).

Almost surely, 2^40582889 is an apocalyptic number.

It is an amenable number.

40582889 is a deficient number, since it is larger than the sum of its proper divisors (1).

40582889 is an equidigital number, since it uses as much as digits as its factorization.

40582889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 40582889 is about 6370.4700768468. The cubic root of 40582889 is about 343.6483951389.

The spelling of 40582889 in words is "forty million, five hundred eighty-two thousand, eight hundred eighty-nine".