40330189 has 2 divisors, whose sum is σ = 40330190. Its totient is φ = 40330188.

The previous prime is 40330187. The next prime is 40330193. The reversal of 40330189 is 98103304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39816100 + 514089 = 6310^2 + 717^2 .

It is a cyclic number.

It is not a de Polignac number, because 40330189 - 2¹ = 40330187 is a prime.

Together with 40330187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40330187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165094 + 20165095.

It is an arithmetic number, because the mean of its divisors is an integer number (20165095).

Almost surely, 2^40330189 is an apocalyptic number.

It is an amenable number.

40330189 is a deficient number, since it is larger than the sum of its proper divisors (1).

40330189 is an equidigital number, since it uses as much as digits as its factorization.

40330189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40330189 is about 6350.6054042115. The cubic root of 40330189 is about 342.9336372559.

The spelling of 40330189 in words is "forty million, three hundred thirty thousand, one hundred eighty-nine".