40229 has 6 divisors (see below), whose sum is σ = 46854. Its totient is φ = 34440.

The previous prime is 40213. The next prime is 40231. The reversal of 40229 is 92204.

40229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30625 + 9604 = 175^2 + 98^2 .

It is not a de Polignac number, because 40229 - 2⁴ = 40213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362 + ... + 459.

It is an arithmetic number, because the mean of its divisors is an integer number (7809).

2⁴⁰²²⁹ is an apocalyptic number.

40229 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

40229 is a deficient number, since it is larger than the sum of its proper divisors (6625).

40229 is an equidigital number, since it uses as much as digits as its factorization.

40229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 40229 is about 200.5716829465. The cubic root of 40229 is about 34.2646588645.

The spelling of 40229 in words is "forty thousand, two hundred twenty-nine".