40253893 has 2 divisors, whose sum is σ = 40253894. Its totient is φ = 40253892.

The previous prime is 40253881. The next prime is 40253911. The reversal of 40253893 is 39835204.

It is a happy number.

40253893 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., 28536964 + 11716929 = 5342^2 + 3423^2 .

It is a cyclic number.

It is not a de Polignac number, because 40253893 - 2⁵ = 40253861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40253803) 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, 20126946 + 20126947.

It is an arithmetic number, because the mean of its divisors is an integer number (20126947).

Almost surely, 2^40253893 is an apocalyptic number.

It is an amenable number.

40253893 is a deficient number, since it is larger than the sum of its proper divisors (1).

40253893 is an equidigital number, since it uses as much as digits as its factorization.

40253893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 40253893 is about 6344.5955741875. The cubic root of 40253893 is about 342.7172486401.

The spelling of 40253893 in words is "forty million, two hundred fifty-three thousand, eight hundred ninety-three".