40481893 has 2 divisors, whose sum is σ = 40481894. Its totient is φ = 40481892.

The previous prime is 40481873. The next prime is 40481897. The reversal of 40481893 is 39818404.

40481893 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., 32285124 + 8196769 = 5682^2 + 2863^2 .

It is a cyclic number.

It is not a de Polignac number, because 40481893 - 2²⁵ = 6927461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40481897) 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, 20240946 + 20240947.

It is an arithmetic number, because the mean of its divisors is an integer number (20240947).

Almost surely, 2^40481893 is an apocalyptic number.

It is an amenable number.

40481893 is a deficient number, since it is larger than the sum of its proper divisors (1).

40481893 is an equidigital number, since it uses as much as digits as its factorization.

40481893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 40481893 is about 6362.5382513585. The cubic root of 40481893 is about 343.3630865178.

The spelling of 40481893 in words is "forty million, four hundred eighty-one thousand, eight hundred ninety-three".