40453789 has 2 divisors, whose sum is σ = 40453790. Its totient is φ = 40453788.

The previous prime is 40453783. The next prime is 40453807. The reversal of 40453789 is 98735404.

40453789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39879225 + 574564 = 6315^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 40453789 - 2¹⁵ = 40421021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40453783) 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, 20226894 + 20226895.

It is an arithmetic number, because the mean of its divisors is an integer number (20226895).

Almost surely, 2^40453789 is an apocalyptic number.

It is an amenable number.

40453789 is a deficient number, since it is larger than the sum of its proper divisors (1).

40453789 is an equidigital number, since it uses as much as digits as its factorization.

40453789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 40453789 is about 6360.3293153735. The cubic root of 40453789 is about 343.2836097491.

The spelling of 40453789 in words is "forty million, four hundred fifty-three thousand, seven hundred eighty-nine".