40888613 has 2 divisors, whose sum is σ = 40888614. Its totient is φ = 40888612.

The previous prime is 40888577. The next prime is 40888643. The reversal of 40888613 is 31688804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40742689 + 145924 = 6383^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 40888613 - 2¹² = 40884517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40888643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20444306 + 20444307.

It is an arithmetic number, because the mean of its divisors is an integer number (20444307).

Almost surely, 2^40888613 is an apocalyptic number.

It is an amenable number.

40888613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40888613 is an equidigital number, since it uses as much as digits as its factorization.

40888613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 40888613 is about 6394.4204584935. The cubic root of 40888613 is about 344.5091753205.

The spelling of 40888613 in words is "forty million, eight hundred eighty-eight thousand, six hundred thirteen".