40575389 has 2 divisors, whose sum is σ = 40575390. Its totient is φ = 40575388.

The previous prime is 40575349. The next prime is 40575397. The reversal of 40575389 is 98357504.

40575389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24334489 + 16240900 = 4933^2 + 4030^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40575389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40575329) 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, 20287694 + 20287695.

It is an arithmetic number, because the mean of its divisors is an integer number (20287695).

Almost surely, 2^40575389 is an apocalyptic number.

It is an amenable number.

40575389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40575389 is an equidigital number, since it uses as much as digits as its factorization.

40575389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 40575389 is about 6369.8813960701. The cubic root of 40575389 is about 343.6272242972.

The spelling of 40575389 in words is "forty million, five hundred seventy-five thousand, three hundred eighty-nine".