1829212209 has 12 divisors (see below), whose sum is σ = 2882395152. Its totient is φ = 1108613400.

The previous prime is 1829212169. The next prime is 1829212219. The reversal of 1829212209 is 9022129281.

It is not a de Polignac number, because 1829212209 - 2⁸ = 1829211953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1829212219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9238347 + ... + 9238544.

It is an arithmetic number, because the mean of its divisors is an integer number (240199596).

Almost surely, 2^1829212209 is an apocalyptic number.

It is an amenable number.

1829212209 is a deficient number, since it is larger than the sum of its proper divisors (1053182943).

1829212209 is a wasteful number, since it uses less digits than its factorization.

1829212209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18476908 (or 18476905 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1829212209 is about 42769.2904897895. The cubic root of 1829212209 is about 1222.9856572158.

The spelling of 1829212209 in words is "one billion, eight hundred twenty-nine million, two hundred twelve thousand, two hundred nine".