405241229 has 2 divisors, whose sum is σ = 405241230. Its totient is φ = 405241228.

The previous prime is 405241219. The next prime is 405241241. The reversal of 405241229 is 922142504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 357285604 + 47955625 = 18902^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 405241229 - 2⁸ = 405240973 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 (405241219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202620614 + 202620615.

It is an arithmetic number, because the mean of its divisors is an integer number (202620615).

Almost surely, 2^405241229 is an apocalyptic number.

It is an amenable number.

405241229 is a deficient number, since it is larger than the sum of its proper divisors (1).

405241229 is an equidigital number, since it uses as much as digits as its factorization.

405241229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 405241229 is about 20130.6042879989. The cubic root of 405241229 is about 740.0104874335.

The spelling of 405241229 in words is "four hundred five million, two hundred forty-one thousand, two hundred twenty-nine".