40458893 has 2 divisors, whose sum is σ = 40458894. Its totient is φ = 40458892.

The previous prime is 40458877. The next prime is 40458907. The reversal of 40458893 is 39885404.

40458893 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., 31326409 + 9132484 = 5597^2 + 3022^2 .

It is a cyclic number.

It is not a de Polignac number, because 40458893 - 2⁴ = 40458877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40458893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40158893) 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, 20229446 + 20229447.

It is an arithmetic number, because the mean of its divisors is an integer number (20229447).

Almost surely, 2^40458893 is an apocalyptic number.

It is an amenable number.

40458893 is a deficient number, since it is larger than the sum of its proper divisors (1).

40458893 is an equidigital number, since it uses as much as digits as its factorization.

40458893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 40458893 is about 6360.7305398044. The cubic root of 40458893 is about 343.2980463519.

The spelling of 40458893 in words is "forty million, four hundred fifty-eight thousand, eight hundred ninety-three".