1229206450 has 24 divisors (see below), whose sum is σ = 2287853568. Its totient is φ = 491353680.

The previous prime is 1229206417. The next prime is 1229206469. The reversal of 1229206450 is 546029221.

It is an unprimeable number.

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, 75759 + ... + 90541.

It is an arithmetic number, because the mean of its divisors is an integer number (95327232).

Almost surely, 2^1229206450 is an apocalyptic number.

1229206450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1229206450 is a deficient number, since it is larger than the sum of its proper divisors (1058647118).

1229206450 is a wasteful number, since it uses less digits than its factorization.

1229206450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16458 (or 16453 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1229206450 is about 35060.0406445857. The cubic root of 1229206450 is about 1071.2108021750.

The spelling of 1229206450 in words is "one billion, two hundred twenty-nine million, two hundred six thousand, four hundred fifty".