402208229 has 4 divisors (see below), whose sum is σ = 415182720. Its totient is φ = 389233740.

The previous prime is 402208217. The next prime is 402208259. The reversal of 402208229 is 922802204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402208229 - 2⁸ = 402207973 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 (402208259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6487199 + ... + 6487260.

It is an arithmetic number, because the mean of its divisors is an integer number (103795680).

Almost surely, 2^402208229 is an apocalyptic number.

It is an amenable number.

402208229 is a deficient number, since it is larger than the sum of its proper divisors (12974491).

402208229 is a wasteful number, since it uses less digits than its factorization.

402208229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12974490.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 402208229 is about 20055.1297427865. The cubic root of 402208229 is about 738.1596765021.

The spelling of 402208229 in words is "four hundred two million, two hundred eight thousand, two hundred twenty-nine".