40086229 has 2 divisors, whose sum is σ = 40086230. Its totient is φ = 40086228.

The previous prime is 40086203. The next prime is 40086239. The reversal of 40086229 is 92268004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31618129 + 8468100 = 5623^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 40086229 - 2²⁵ = 6531797 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40086229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40086239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20043114 + 20043115.

It is an arithmetic number, because the mean of its divisors is an integer number (20043115).

Almost surely, 2^40086229 is an apocalyptic number.

It is an amenable number.

40086229 is a deficient number, since it is larger than the sum of its proper divisors (1).

40086229 is an equidigital number, since it uses as much as digits as its factorization.

40086229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 40086229 is about 6331.3686514055. The cubic root of 40086229 is about 342.2407621505.

The spelling of 40086229 in words is "forty million, eighty-six thousand, two hundred twenty-nine".