499999212 has 36 divisors (see below), whose sum is σ = 1330409080. Its totient is φ = 157894272.

The previous prime is 499999211. The next prime is 499999219. The reversal of 499999212 is 212999994.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (499999211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364813 + ... + 366180.

Almost surely, 2^499999212 is an apocalyptic number.

It is an amenable number.

499999212 is an abundant number, since it is smaller than the sum of its proper divisors (830409868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

499999212 is a wasteful number, since it uses less digits than its factorization.

499999212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731022 (or 731017 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 499999212 is about 22360.6621547753. The cubic root of 499999212 is about 793.7001090265.

The spelling of 499999212 in words is "four hundred ninety-nine million, nine hundred ninety-nine thousand, two hundred twelve".