40294789 has 2 divisors, whose sum is σ = 40294790. Its totient is φ = 40294788.

The previous prime is 40294769. The next prime is 40294799. The reversal of 40294789 is 98749204.

40294789 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., 34692100 + 5602689 = 5890^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 40294789 - 2⁹ = 40294277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40294729) 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, 20147394 + 20147395.

It is an arithmetic number, because the mean of its divisors is an integer number (20147395).

Almost surely, 2^40294789 is an apocalyptic number.

It is an amenable number.

40294789 is a deficient number, since it is larger than the sum of its proper divisors (1).

40294789 is an equidigital number, since it uses as much as digits as its factorization.

40294789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 40294789 is about 6347.8176564864. The cubic root of 40294789 is about 342.8332707172.

The spelling of 40294789 in words is "forty million, two hundred ninety-four thousand, seven hundred eighty-nine".