401229 has 12 divisors (see below), whose sum is σ = 586300. Its totient is φ = 264384.

The previous prime is 401209. The next prime is 401231. The reversal of 401229 is 922104.

It can be written as a sum of positive squares in 2 ways, for example, as 328329 + 72900 = 573^2 + 270^2 .

It is not a de Polignac number, because 401229 - 2⁷ = 401101 is a prime.

It is a Duffinian number.

401229 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 777 + ... + 1185.

2⁴⁰¹²²⁹ is an apocalyptic number.

It is an amenable number.

401229 is a deficient number, since it is larger than the sum of its proper divisors (185071).

401229 is a wasteful number, since it uses less digits than its factorization.

401229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 401229 is about 633.4263966713. The cubic root of 401229 is about 73.7560140648.

It can be divided in two parts, 401 and 229, that added together give a triangular number (630 = T₃₅).

The spelling of 401229 in words is "four hundred one thousand, two hundred twenty-nine".