40385113 has 2 divisors, whose sum is σ = 40385114. Its totient is φ = 40385112.

The previous prime is 40385071. The next prime is 40385119. The reversal of 40385113 is 31158304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27910089 + 12475024 = 5283^2 + 3532^2 .

It is a cyclic number.

It is not a de Polignac number, because 40385113 - 2¹⁷ = 40254041 is a prime.

It is not a weakly prime, because it can be changed into another prime (40385119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20192556 + 20192557.

It is an arithmetic number, because the mean of its divisors is an integer number (20192557).

Almost surely, 2^40385113 is an apocalyptic number.

It is an amenable number.

40385113 is a deficient number, since it is larger than the sum of its proper divisors (1).

40385113 is an equidigital number, since it uses as much as digits as its factorization.

40385113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 40385113 is about 6354.9282450709. The cubic root of 40385113 is about 343.0892423059.

The spelling of 40385113 in words is "forty million, three hundred eighty-five thousand, one hundred thirteen".